./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/list-simple/sll2n_append_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/list-simple/sll2n_append_unequal.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 742ffe63db70127807dbc7584eb0c51633a9ed1be5f19fa1a247e43392d52dab --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:20:15,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:20:15,576 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-04-30 10:20:15,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:20:15,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:20:15,599 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:20:15,599 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:20:15,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:20:15,599 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:20:15,599 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:20:15,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:20:15,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:20:15,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:20:15,600 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:20:15,600 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:20:15,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:20:15,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:20:15,600 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:20:15,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:20:15,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:20:15,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:20:15,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:20:15,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:20:15,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:20:15,601 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-04-30 10:20:15,601 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:20:15,601 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:20:15,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:20:15,601 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:20:15,601 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:20:15,602 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:20:15,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:20:15,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:20:15,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:20:15,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:20:15,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:20:15,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:20:15,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:20:15,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:20:15,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:20:15,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:20:15,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:20:15,603 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:20:15,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:20:15,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:20:15,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:20:15,603 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:20:15,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:20:15,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:20:15,603 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/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 -> 742ffe63db70127807dbc7584eb0c51633a9ed1be5f19fa1a247e43392d52dab [2025-04-30 10:20:15,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:20:15,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:20:15,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:20:15,842 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:20:15,843 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:20:15,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_append_unequal.i [2025-04-30 10:20:17,172 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd4bb866/89b70f865aad4bbf8dcb0f824ddf367c/FLAGf0bcaf40d [2025-04-30 10:20:17,465 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:20:17,467 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_append_unequal.i [2025-04-30 10:20:17,480 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd4bb866/89b70f865aad4bbf8dcb0f824ddf367c/FLAGf0bcaf40d [2025-04-30 10:20:18,174 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd4bb866/89b70f865aad4bbf8dcb0f824ddf367c [2025-04-30 10:20:18,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:20:18,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:20:18,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:20:18,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:20:18,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:20:18,183 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d2be106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18, skipping insertion in model container [2025-04-30 10:20:18,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,205 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:20:18,443 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:20:18,449 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:20:18,512 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:20:18,535 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:20:18,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18 WrapperNode [2025-04-30 10:20:18,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:20:18,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:20:18,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:20:18,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:20:18,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,576 INFO L138 Inliner]: procedures = 127, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 139 [2025-04-30 10:20:18,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:20:18,577 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:20:18,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:20:18,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:20:18,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,589 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,608 INFO L175 MemorySlicer]: Split 20 memory accesses to 3 slices as follows [2, 12, 6]. 60 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 1]. The 5 writes are split as follows [0, 4, 1]. [2025-04-30 10:20:18,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,609 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,613 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,617 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,618 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:20:18,622 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:20:18,622 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:20:18,623 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:20:18,623 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (1/1) ... [2025-04-30 10:20:18,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:20:18,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:18,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-30 10:20:18,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-30 10:20:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-30 10:20:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-30 10:20:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-30 10:20:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-30 10:20:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-30 10:20:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-30 10:20:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2025-04-30 10:20:18,708 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2025-04-30 10:20:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-30 10:20:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:20:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-30 10:20:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-30 10:20:18,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-30 10:20:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-04-30 10:20:18,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-04-30 10:20:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-04-30 10:20:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-04-30 10:20:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-30 10:20:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-04-30 10:20:18,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-04-30 10:20:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-04-30 10:20:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:20:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-30 10:20:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-30 10:20:18,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:20:18,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:20:18,831 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:20:18,833 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:20:19,032 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2025-04-30 10:20:19,032 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:20:19,041 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:20:19,041 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-04-30 10:20:19,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:20:19 BoogieIcfgContainer [2025-04-30 10:20:19,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:20:19,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:20:19,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:20:19,048 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:20:19,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:20:18" (1/3) ... [2025-04-30 10:20:19,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6170029c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:20:19, skipping insertion in model container [2025-04-30 10:20:19,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:20:18" (2/3) ... [2025-04-30 10:20:19,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6170029c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:20:19, skipping insertion in model container [2025-04-30 10:20:19,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:20:19" (3/3) ... [2025-04-30 10:20:19,050 INFO L128 eAbstractionObserver]: Analyzing ICFG sll2n_append_unequal.i [2025-04-30 10:20:19,060 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:20:19,061 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sll2n_append_unequal.i that has 2 procedures, 52 locations, 67 edges, 1 initial locations, 4 loop locations, and 8 error locations. [2025-04-30 10:20:19,100 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:20:19,108 INFO L340 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;@5f05d5c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:20:19,109 INFO L341 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-04-30 10:20:19,111 INFO L278 IsEmpty]: Start isEmpty. Operand has 52 states, 40 states have (on average 1.525) internal successors, (61), 48 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-04-30 10:20:19,115 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-04-30 10:20:19,115 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:19,116 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:20:19,116 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:19,119 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:19,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1817763134, now seen corresponding path program 1 times [2025-04-30 10:20:19,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:19,124 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204232981] [2025-04-30 10:20:19,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:19,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:19,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-30 10:20:19,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-30 10:20:19,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:19,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:20:19,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:19,400 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204232981] [2025-04-30 10:20:19,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204232981] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:20:19,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:20:19,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:20:19,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998078606] [2025-04-30 10:20:19,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:20:19,406 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:20:19,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:19,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:20:19,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:19,420 INFO L87 Difference]: Start difference. First operand has 52 states, 40 states have (on average 1.525) internal successors, (61), 48 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-04-30 10:20:19,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:19,476 INFO L93 Difference]: Finished difference Result 100 states and 127 transitions. [2025-04-30 10:20:19,477 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:20:19,478 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2025-04-30 10:20:19,478 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:19,482 INFO L225 Difference]: With dead ends: 100 [2025-04-30 10:20:19,482 INFO L226 Difference]: Without dead ends: 47 [2025-04-30 10:20:19,485 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:19,488 INFO L437 NwaCegarLoop]: 55 mSDtfsCounter, 1 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:19,488 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 159 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:19,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2025-04-30 10:20:19,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2025-04-30 10:20:19,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 41 states have internal predecessors, (46), 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) [2025-04-30 10:20:19,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2025-04-30 10:20:19,513 INFO L79 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 11 [2025-04-30 10:20:19,514 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:19,514 INFO L485 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2025-04-30 10:20:19,514 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-04-30 10:20:19,514 INFO L278 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2025-04-30 10:20:19,515 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-04-30 10:20:19,515 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:19,515 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:20:19,515 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:20:19,515 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:19,515 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:19,516 INFO L85 PathProgramCache]: Analyzing trace with hash 516082348, now seen corresponding path program 1 times [2025-04-30 10:20:19,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:19,516 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493755968] [2025-04-30 10:20:19,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:19,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:19,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-30 10:20:19,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-30 10:20:19,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:19,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:19,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:20:19,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:19,610 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493755968] [2025-04-30 10:20:19,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493755968] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:20:19,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:20:19,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:20:19,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756475949] [2025-04-30 10:20:19,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:20:19,610 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:20:19,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:19,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:20:19,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:19,611 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-04-30 10:20:19,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:19,641 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2025-04-30 10:20:19,642 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:20:19,642 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 12 [2025-04-30 10:20:19,642 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:19,642 INFO L225 Difference]: With dead ends: 48 [2025-04-30 10:20:19,643 INFO L226 Difference]: Without dead ends: 47 [2025-04-30 10:20:19,643 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:19,643 INFO L437 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:19,644 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2025-04-30 10:20:19,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2025-04-30 10:20:19,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 42 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) [2025-04-30 10:20:19,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2025-04-30 10:20:19,648 INFO L79 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 12 [2025-04-30 10:20:19,648 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:19,648 INFO L485 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2025-04-30 10:20:19,648 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-04-30 10:20:19,649 INFO L278 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2025-04-30 10:20:19,649 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-04-30 10:20:19,649 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:19,649 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-04-30 10:20:19,649 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:20:19,649 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:19,649 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:19,649 INFO L85 PathProgramCache]: Analyzing trace with hash -529121900, now seen corresponding path program 1 times [2025-04-30 10:20:19,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:19,650 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286756327] [2025-04-30 10:20:19,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:19,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:19,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-30 10:20:19,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-30 10:20:19,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:19,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:19,752 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-30 10:20:19,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:19,752 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286756327] [2025-04-30 10:20:19,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286756327] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:20:19,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:20:19,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:20:19,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499386828] [2025-04-30 10:20:19,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:20:19,753 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:20:19,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:19,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:20:19,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:19,755 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-04-30 10:20:19,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:19,783 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2025-04-30 10:20:19,783 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:20:19,784 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2025-04-30 10:20:19,784 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:19,784 INFO L225 Difference]: With dead ends: 47 [2025-04-30 10:20:19,784 INFO L226 Difference]: Without dead ends: 46 [2025-04-30 10:20:19,785 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:19,785 INFO L437 NwaCegarLoop]: 41 mSDtfsCounter, 1 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:19,785 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 117 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:19,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-04-30 10:20:19,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2025-04-30 10:20:19,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 41 states have internal predecessors, (46), 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) [2025-04-30 10:20:19,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2025-04-30 10:20:19,789 INFO L79 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 21 [2025-04-30 10:20:19,789 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:19,789 INFO L485 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2025-04-30 10:20:19,789 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-04-30 10:20:19,789 INFO L278 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2025-04-30 10:20:19,789 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-04-30 10:20:19,789 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:19,789 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-04-30 10:20:19,791 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:20:19,792 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:19,792 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:19,792 INFO L85 PathProgramCache]: Analyzing trace with hash 777090326, now seen corresponding path program 1 times [2025-04-30 10:20:19,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:19,792 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615436699] [2025-04-30 10:20:19,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:19,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:19,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-30 10:20:19,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-30 10:20:19,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:19,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:19,932 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-30 10:20:19,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:19,932 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615436699] [2025-04-30 10:20:19,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615436699] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:19,932 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173313510] [2025-04-30 10:20:19,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:19,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:19,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:19,941 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:19,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-30 10:20:20,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-30 10:20:20,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-30 10:20:20,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:20,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:20,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-30 10:20:20,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-30 10:20:20,137 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:20:20,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173313510] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:20:20,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-30 10:20:20,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-04-30 10:20:20,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228431623] [2025-04-30 10:20:20,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:20:20,138 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:20:20,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:20,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:20:20,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-04-30 10:20:20,138 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-04-30 10:20:20,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:20,174 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2025-04-30 10:20:20,174 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:20:20,174 INFO L79 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2025-04-30 10:20:20,174 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:20,175 INFO L225 Difference]: With dead ends: 46 [2025-04-30 10:20:20,175 INFO L226 Difference]: Without dead ends: 45 [2025-04-30 10:20:20,175 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-04-30 10:20:20,175 INFO L437 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:20,176 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:20,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2025-04-30 10:20:20,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2025-04-30 10:20:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 32 states have (on average 1.3125) internal successors, (42), 37 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-04-30 10:20:20,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2025-04-30 10:20:20,181 INFO L79 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 22 [2025-04-30 10:20:20,181 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:20,181 INFO L485 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2025-04-30 10:20:20,181 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-04-30 10:20:20,181 INFO L278 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2025-04-30 10:20:20,182 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-04-30 10:20:20,182 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:20,182 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:20:20,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-30 10:20:20,384 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:20,385 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:20,385 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:20,385 INFO L85 PathProgramCache]: Analyzing trace with hash -659531746, now seen corresponding path program 1 times [2025-04-30 10:20:20,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:20,385 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820106524] [2025-04-30 10:20:20,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:20,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:20,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-30 10:20:20,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-30 10:20:20,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:20,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:20,491 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-30 10:20:20,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:20,491 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820106524] [2025-04-30 10:20:20,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820106524] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:20,491 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155393456] [2025-04-30 10:20:20,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:20,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:20,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:20,495 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:20,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-30 10:20:20,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-30 10:20:20,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-30 10:20:20,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:20,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:20,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-30 10:20:20,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:20,622 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-30 10:20:20,622 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:20:20,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155393456] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:20:20,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-30 10:20:20,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2025-04-30 10:20:20,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906359471] [2025-04-30 10:20:20,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:20:20,622 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:20:20,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:20,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:20:20,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:20,623 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (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) [2025-04-30 10:20:20,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:20,627 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2025-04-30 10:20:20,627 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:20:20,627 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (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 25 [2025-04-30 10:20:20,628 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:20,628 INFO L225 Difference]: With dead ends: 41 [2025-04-30 10:20:20,628 INFO L226 Difference]: Without dead ends: 40 [2025-04-30 10:20:20,628 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:20,628 INFO L437 NwaCegarLoop]: 42 mSDtfsCounter, 23 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:20,629 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:20,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2025-04-30 10:20:20,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2025-04-30 10:20:20,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.28125) internal successors, (41), 36 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-04-30 10:20:20,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2025-04-30 10:20:20,633 INFO L79 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 25 [2025-04-30 10:20:20,633 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:20,633 INFO L485 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2025-04-30 10:20:20,633 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (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) [2025-04-30 10:20:20,634 INFO L278 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2025-04-30 10:20:20,634 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-04-30 10:20:20,634 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:20,634 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:20:20,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-30 10:20:20,834 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:20,835 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:20,835 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:20,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1029352467, now seen corresponding path program 1 times [2025-04-30 10:20:20,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:20,835 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190672730] [2025-04-30 10:20:20,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:20,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:20,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-30 10:20:20,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-30 10:20:20,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:20,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-30 10:20:20,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:20,911 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190672730] [2025-04-30 10:20:20,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190672730] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:20,911 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916918838] [2025-04-30 10:20:20,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:20,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:20,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:20,914 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:20,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-30 10:20:20,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-30 10:20:21,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-30 10:20:21,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:21,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:21,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-30 10:20:21,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:21,040 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-30 10:20:21,040 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:20:21,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916918838] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:20:21,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-30 10:20:21,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2025-04-30 10:20:21,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927320245] [2025-04-30 10:20:21,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:20:21,040 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:20:21,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:21,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:20:21,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:21,041 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2025-04-30 10:20:21,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:21,044 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2025-04-30 10:20:21,044 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:20:21,045 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 26 [2025-04-30 10:20:21,045 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:21,046 INFO L225 Difference]: With dead ends: 40 [2025-04-30 10:20:21,046 INFO L226 Difference]: Without dead ends: 37 [2025-04-30 10:20:21,046 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:21,046 INFO L437 NwaCegarLoop]: 42 mSDtfsCounter, 22 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:21,046 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 49 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:21,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-04-30 10:20:21,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2025-04-30 10:20:21,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 33 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-04-30 10:20:21,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2025-04-30 10:20:21,053 INFO L79 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 26 [2025-04-30 10:20:21,053 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:21,053 INFO L485 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2025-04-30 10:20:21,053 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2025-04-30 10:20:21,053 INFO L278 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2025-04-30 10:20:21,053 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-04-30 10:20:21,053 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:21,054 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-04-30 10:20:21,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-30 10:20:21,254 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:21,254 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:21,254 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:21,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1661468571, now seen corresponding path program 1 times [2025-04-30 10:20:21,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:21,255 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633413598] [2025-04-30 10:20:21,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:21,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:21,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-04-30 10:20:21,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-04-30 10:20:21,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:21,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:21,333 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-30 10:20:21,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:21,333 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633413598] [2025-04-30 10:20:21,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633413598] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:21,333 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983503826] [2025-04-30 10:20:21,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:21,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:21,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:21,339 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:21,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-30 10:20:21,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-04-30 10:20:21,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-04-30 10:20:21,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:21,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:21,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-04-30 10:20:21,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:21,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:20:21,478 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:20:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-30 10:20:21,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983503826] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:20:21,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:20:21,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-04-30 10:20:21,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537203701] [2025-04-30 10:20:21,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:20:21,516 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-30 10:20:21,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:21,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-30 10:20:21,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-04-30 10:20:21,519 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-04-30 10:20:21,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:21,553 INFO L93 Difference]: Finished difference Result 71 states and 79 transitions. [2025-04-30 10:20:21,553 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-30 10:20:21,553 INFO L79 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2025-04-30 10:20:21,553 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:21,554 INFO L225 Difference]: With dead ends: 71 [2025-04-30 10:20:21,554 INFO L226 Difference]: Without dead ends: 42 [2025-04-30 10:20:21,554 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-04-30 10:20:21,557 INFO L437 NwaCegarLoop]: 36 mSDtfsCounter, 1 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:21,557 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 134 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:21,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2025-04-30 10:20:21,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2025-04-30 10:20:21,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 37 states have internal predecessors, (41), 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) [2025-04-30 10:20:21,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2025-04-30 10:20:21,564 INFO L79 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 29 [2025-04-30 10:20:21,564 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:21,564 INFO L485 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2025-04-30 10:20:21,564 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-04-30 10:20:21,564 INFO L278 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2025-04-30 10:20:21,565 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-04-30 10:20:21,566 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:21,566 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-04-30 10:20:21,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-30 10:20:21,766 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:21,767 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:21,767 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:21,767 INFO L85 PathProgramCache]: Analyzing trace with hash 532297531, now seen corresponding path program 2 times [2025-04-30 10:20:21,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:21,767 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165223991] [2025-04-30 10:20:21,768 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:20:21,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:21,786 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-04-30 10:20:21,788 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 39 statements. [2025-04-30 10:20:21,788 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:20:21,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:21,832 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:21,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:21,832 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165223991] [2025-04-30 10:20:21,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165223991] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:20:21,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:20:21,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:20:21,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540120388] [2025-04-30 10:20:21,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:20:21,833 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:20:21,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:21,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:20:21,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:21,834 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2025-04-30 10:20:21,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:21,856 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2025-04-30 10:20:21,857 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:20:21,857 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 39 [2025-04-30 10:20:21,857 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:21,857 INFO L225 Difference]: With dead ends: 52 [2025-04-30 10:20:21,857 INFO L226 Difference]: Without dead ends: 50 [2025-04-30 10:20:21,858 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:21,858 INFO L437 NwaCegarLoop]: 36 mSDtfsCounter, 3 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:21,858 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 102 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:21,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2025-04-30 10:20:21,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2025-04-30 10:20:21,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 40 states have (on average 1.2) internal successors, (48), 43 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) [2025-04-30 10:20:21,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2025-04-30 10:20:21,862 INFO L79 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 39 [2025-04-30 10:20:21,862 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:21,862 INFO L485 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2025-04-30 10:20:21,862 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2025-04-30 10:20:21,862 INFO L278 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2025-04-30 10:20:21,863 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-04-30 10:20:21,863 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:21,863 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-04-30 10:20:21,863 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-30 10:20:21,863 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:21,863 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:21,863 INFO L85 PathProgramCache]: Analyzing trace with hash 532370022, now seen corresponding path program 1 times [2025-04-30 10:20:21,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:21,864 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601027526] [2025-04-30 10:20:21,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:21,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:21,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-04-30 10:20:21,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-04-30 10:20:21,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:21,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:21,926 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:21,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:21,927 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601027526] [2025-04-30 10:20:21,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601027526] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:20:21,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:20:21,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:20:21,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670312115] [2025-04-30 10:20:21,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:20:21,927 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:20:21,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:21,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:20:21,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:21,928 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2025-04-30 10:20:21,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:21,947 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2025-04-30 10:20:21,948 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:20:21,948 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 39 [2025-04-30 10:20:21,948 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:21,949 INFO L225 Difference]: With dead ends: 54 [2025-04-30 10:20:21,949 INFO L226 Difference]: Without dead ends: 48 [2025-04-30 10:20:21,950 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:20:21,950 INFO L437 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:21,950 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 104 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:21,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2025-04-30 10:20:21,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2025-04-30 10:20:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 40 states have (on average 1.175) internal successors, (47), 43 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) [2025-04-30 10:20:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2025-04-30 10:20:21,959 INFO L79 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 39 [2025-04-30 10:20:21,959 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:21,959 INFO L485 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2025-04-30 10:20:21,959 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2025-04-30 10:20:21,960 INFO L278 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2025-04-30 10:20:21,960 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-04-30 10:20:21,960 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:21,960 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:20:21,960 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-30 10:20:21,960 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:21,961 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:21,961 INFO L85 PathProgramCache]: Analyzing trace with hash 924452529, now seen corresponding path program 1 times [2025-04-30 10:20:21,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:21,961 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885948669] [2025-04-30 10:20:21,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:21,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:21,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-04-30 10:20:21,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-04-30 10:20:21,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:21,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:22,073 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:22,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:22,073 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885948669] [2025-04-30 10:20:22,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885948669] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:22,073 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229383990] [2025-04-30 10:20:22,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:22,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:22,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:22,076 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:22,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-30 10:20:22,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-04-30 10:20:22,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-04-30 10:20:22,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:22,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:22,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-30 10:20:22,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:22,247 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:20:22,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229383990] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:20:22,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-30 10:20:22,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-04-30 10:20:22,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188455143] [2025-04-30 10:20:22,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:20:22,248 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:20:22,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:22,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:20:22,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-04-30 10:20:22,249 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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) [2025-04-30 10:20:22,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:22,267 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2025-04-30 10:20:22,267 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:20:22,268 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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 45 [2025-04-30 10:20:22,268 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:22,268 INFO L225 Difference]: With dead ends: 48 [2025-04-30 10:20:22,268 INFO L226 Difference]: Without dead ends: 47 [2025-04-30 10:20:22,268 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-04-30 10:20:22,270 INFO L437 NwaCegarLoop]: 34 mSDtfsCounter, 4 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:22,270 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 93 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:22,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2025-04-30 10:20:22,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2025-04-30 10:20:22,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 40 states have (on average 1.15) internal successors, (46), 42 states have internal predecessors, (46), 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) [2025-04-30 10:20:22,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2025-04-30 10:20:22,273 INFO L79 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 45 [2025-04-30 10:20:22,273 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:22,273 INFO L485 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2025-04-30 10:20:22,273 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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) [2025-04-30 10:20:22,273 INFO L278 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2025-04-30 10:20:22,277 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-04-30 10:20:22,277 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:22,277 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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] [2025-04-30 10:20:22,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-30 10:20:22,477 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-04-30 10:20:22,477 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:22,478 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:22,478 INFO L85 PathProgramCache]: Analyzing trace with hash 924525020, now seen corresponding path program 1 times [2025-04-30 10:20:22,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:22,478 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753499741] [2025-04-30 10:20:22,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:22,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:22,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-04-30 10:20:22,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-04-30 10:20:22,499 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:22,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:22,570 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:22,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:22,570 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753499741] [2025-04-30 10:20:22,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753499741] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:22,570 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736498313] [2025-04-30 10:20:22,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:22,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:22,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:22,572 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:22,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-30 10:20:22,651 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-04-30 10:20:22,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-04-30 10:20:22,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:22,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:22,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-30 10:20:22,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:22,712 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:22,712 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:20:22,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736498313] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:20:22,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-30 10:20:22,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-04-30 10:20:22,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693224892] [2025-04-30 10:20:22,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:20:22,713 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:20:22,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:22,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:20:22,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-04-30 10:20:22,713 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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) [2025-04-30 10:20:22,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:22,744 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2025-04-30 10:20:22,745 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-30 10:20:22,745 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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 45 [2025-04-30 10:20:22,745 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:22,745 INFO L225 Difference]: With dead ends: 47 [2025-04-30 10:20:22,745 INFO L226 Difference]: Without dead ends: 46 [2025-04-30 10:20:22,746 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-04-30 10:20:22,746 INFO L437 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:22,746 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 114 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:22,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-04-30 10:20:22,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2025-04-30 10:20:22,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 40 states have (on average 1.125) internal successors, (45), 41 states have internal predecessors, (45), 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) [2025-04-30 10:20:22,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2025-04-30 10:20:22,749 INFO L79 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 45 [2025-04-30 10:20:22,750 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:22,750 INFO L485 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2025-04-30 10:20:22,750 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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) [2025-04-30 10:20:22,750 INFO L278 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2025-04-30 10:20:22,750 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-04-30 10:20:22,750 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:22,750 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:20:22,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-04-30 10:20:22,951 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:22,951 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:22,952 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:22,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1406742580, now seen corresponding path program 1 times [2025-04-30 10:20:22,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:22,952 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644409900] [2025-04-30 10:20:22,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:22,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:22,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-04-30 10:20:22,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-04-30 10:20:22,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:22,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:23,308 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-04-30 10:20:23,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:23,308 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644409900] [2025-04-30 10:20:23,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644409900] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:20:23,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:20:23,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-04-30 10:20:23,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542545068] [2025-04-30 10:20:23,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:20:23,308 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-04-30 10:20:23,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:23,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-04-30 10:20:23,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-04-30 10:20:23,309 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-04-30 10:20:23,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:23,454 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2025-04-30 10:20:23,454 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-30 10:20:23,454 INFO L79 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2025-04-30 10:20:23,454 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:23,455 INFO L225 Difference]: With dead ends: 66 [2025-04-30 10:20:23,455 INFO L226 Difference]: Without dead ends: 46 [2025-04-30 10:20:23,456 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2025-04-30 10:20:23,456 INFO L437 NwaCegarLoop]: 28 mSDtfsCounter, 34 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:23,456 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 226 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-30 10:20:23,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-04-30 10:20:23,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2025-04-30 10:20:23,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 40 states have (on average 1.1) internal successors, (44), 41 states have internal predecessors, (44), 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) [2025-04-30 10:20:23,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2025-04-30 10:20:23,463 INFO L79 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 46 [2025-04-30 10:20:23,463 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:23,463 INFO L485 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2025-04-30 10:20:23,463 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-04-30 10:20:23,463 INFO L278 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2025-04-30 10:20:23,463 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-04-30 10:20:23,463 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:23,464 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:20:23,464 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-30 10:20:23,464 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:23,464 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:23,464 INFO L85 PathProgramCache]: Analyzing trace with hash -722303873, now seen corresponding path program 1 times [2025-04-30 10:20:23,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:23,464 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825929974] [2025-04-30 10:20:23,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:23,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:23,478 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-04-30 10:20:23,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-04-30 10:20:23,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:23,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:23,543 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:23,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:23,544 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825929974] [2025-04-30 10:20:23,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825929974] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:23,544 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692952305] [2025-04-30 10:20:23,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:23,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:23,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:23,546 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:23,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-30 10:20:23,630 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-04-30 10:20:23,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-04-30 10:20:23,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:23,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:23,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-30 10:20:23,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:23,707 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:23,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:20:23,755 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:23,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692952305] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:20:23,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:20:23,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-04-30 10:20:23,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857355075] [2025-04-30 10:20:23,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:20:23,756 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-04-30 10:20:23,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:23,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-04-30 10:20:23,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-04-30 10:20:23,756 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 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) [2025-04-30 10:20:23,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:23,782 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2025-04-30 10:20:23,782 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-30 10:20:23,783 INFO L79 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 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 49 [2025-04-30 10:20:23,783 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:23,783 INFO L225 Difference]: With dead ends: 71 [2025-04-30 10:20:23,783 INFO L226 Difference]: Without dead ends: 70 [2025-04-30 10:20:23,784 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-04-30 10:20:23,784 INFO L437 NwaCegarLoop]: 33 mSDtfsCounter, 10 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:23,784 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 171 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:23,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2025-04-30 10:20:23,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 64. [2025-04-30 10:20:23,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 58 states have (on average 1.1206896551724137) internal successors, (65), 59 states have internal predecessors, (65), 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) [2025-04-30 10:20:23,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2025-04-30 10:20:23,792 INFO L79 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 49 [2025-04-30 10:20:23,793 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:23,793 INFO L485 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2025-04-30 10:20:23,793 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 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) [2025-04-30 10:20:23,793 INFO L278 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2025-04-30 10:20:23,793 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-04-30 10:20:23,793 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:23,794 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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] [2025-04-30 10:20:23,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-04-30 10:20:23,995 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:23,996 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:23,996 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:23,996 INFO L85 PathProgramCache]: Analyzing trace with hash -720056639, now seen corresponding path program 1 times [2025-04-30 10:20:23,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:23,996 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464091798] [2025-04-30 10:20:23,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:23,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:24,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-04-30 10:20:24,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-04-30 10:20:24,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:24,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:24,089 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:24,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:24,090 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464091798] [2025-04-30 10:20:24,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464091798] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:24,090 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252238008] [2025-04-30 10:20:24,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:24,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:24,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:24,092 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:24,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-04-30 10:20:24,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-04-30 10:20:24,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-04-30 10:20:24,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:24,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:24,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-30 10:20:24,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:24,254 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:24,254 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:20:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:24,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252238008] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:20:24,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:20:24,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-04-30 10:20:24,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103241878] [2025-04-30 10:20:24,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:20:24,309 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-04-30 10:20:24,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:24,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-04-30 10:20:24,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2025-04-30 10:20:24,309 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 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) [2025-04-30 10:20:24,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:24,339 INFO L93 Difference]: Finished difference Result 73 states and 79 transitions. [2025-04-30 10:20:24,340 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-30 10:20:24,340 INFO L79 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 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 49 [2025-04-30 10:20:24,340 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:24,340 INFO L225 Difference]: With dead ends: 73 [2025-04-30 10:20:24,340 INFO L226 Difference]: Without dead ends: 64 [2025-04-30 10:20:24,340 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2025-04-30 10:20:24,341 INFO L437 NwaCegarLoop]: 32 mSDtfsCounter, 4 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:24,341 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 196 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:24,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2025-04-30 10:20:24,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2025-04-30 10:20:24,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 58 states have (on average 1.0862068965517242) internal successors, (63), 59 states have internal predecessors, (63), 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) [2025-04-30 10:20:24,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2025-04-30 10:20:24,348 INFO L79 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 49 [2025-04-30 10:20:24,348 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:24,348 INFO L485 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2025-04-30 10:20:24,348 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 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) [2025-04-30 10:20:24,348 INFO L278 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2025-04-30 10:20:24,349 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-04-30 10:20:24,349 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:24,349 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:20:24,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-04-30 10:20:24,549 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-04-30 10:20:24,553 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:24,553 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:24,553 INFO L85 PathProgramCache]: Analyzing trace with hash 349952597, now seen corresponding path program 2 times [2025-04-30 10:20:24,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:24,553 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610855018] [2025-04-30 10:20:24,553 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:20:24,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:24,565 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 61 statements into 2 equivalence classes. [2025-04-30 10:20:24,581 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 61 of 61 statements. [2025-04-30 10:20:24,581 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-30 10:20:24,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:24,730 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:24,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:24,731 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610855018] [2025-04-30 10:20:24,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610855018] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:24,731 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131309582] [2025-04-30 10:20:24,731 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:20:24,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:24,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:24,734 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:24,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-04-30 10:20:24,827 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 61 statements into 2 equivalence classes. [2025-04-30 10:20:24,872 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 61 of 61 statements. [2025-04-30 10:20:24,872 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-30 10:20:24,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:24,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-04-30 10:20:24,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:24,917 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:20:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:25,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131309582] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:20:25,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:20:25,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2025-04-30 10:20:25,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280833673] [2025-04-30 10:20:25,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:20:25,012 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-04-30 10:20:25,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:25,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-04-30 10:20:25,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2025-04-30 10:20:25,013 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand has 20 states, 19 states have (on average 4.052631578947368) internal successors, (77), 20 states have internal predecessors, (77), 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) [2025-04-30 10:20:25,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:25,055 INFO L93 Difference]: Finished difference Result 94 states and 102 transitions. [2025-04-30 10:20:25,055 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-30 10:20:25,055 INFO L79 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.052631578947368) internal successors, (77), 20 states have internal predecessors, (77), 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 61 [2025-04-30 10:20:25,056 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:25,056 INFO L225 Difference]: With dead ends: 94 [2025-04-30 10:20:25,056 INFO L226 Difference]: Without dead ends: 80 [2025-04-30 10:20:25,056 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2025-04-30 10:20:25,057 INFO L437 NwaCegarLoop]: 32 mSDtfsCounter, 8 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:25,057 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 229 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:20:25,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2025-04-30 10:20:25,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2025-04-30 10:20:25,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 72 states have (on average 1.0555555555555556) internal successors, (76), 73 states have internal predecessors, (76), 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) [2025-04-30 10:20:25,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 82 transitions. [2025-04-30 10:20:25,061 INFO L79 Accepts]: Start accepts. Automaton has 78 states and 82 transitions. Word has length 61 [2025-04-30 10:20:25,061 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:25,061 INFO L485 AbstractCegarLoop]: Abstraction has 78 states and 82 transitions. [2025-04-30 10:20:25,061 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.052631578947368) internal successors, (77), 20 states have internal predecessors, (77), 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) [2025-04-30 10:20:25,061 INFO L278 IsEmpty]: Start isEmpty. Operand 78 states and 82 transitions. [2025-04-30 10:20:25,062 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-04-30 10:20:25,062 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:25,062 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:20:25,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-04-30 10:20:25,266 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-04-30 10:20:25,266 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:25,267 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:25,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1861038799, now seen corresponding path program 2 times [2025-04-30 10:20:25,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:25,267 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082409498] [2025-04-30 10:20:25,267 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:20:25,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:25,280 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-04-30 10:20:25,294 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-04-30 10:20:25,295 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-30 10:20:25,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:25,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:25,506 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082409498] [2025-04-30 10:20:25,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082409498] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:25,506 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327079582] [2025-04-30 10:20:25,506 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:20:25,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:25,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:25,508 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:25,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-04-30 10:20:25,609 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-04-30 10:20:25,677 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-04-30 10:20:25,677 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-30 10:20:25,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:25,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-04-30 10:20:25,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:25,746 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:25,746 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:20:25,970 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-30 10:20:25,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327079582] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:20:25,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:20:25,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2025-04-30 10:20:25,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582659431] [2025-04-30 10:20:25,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:20:25,971 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-04-30 10:20:25,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:25,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-04-30 10:20:25,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2025-04-30 10:20:25,973 INFO L87 Difference]: Start difference. First operand 78 states and 82 transitions. Second operand has 32 states, 31 states have (on average 3.6451612903225805) internal successors, (113), 32 states have internal predecessors, (113), 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) [2025-04-30 10:20:26,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:26,041 INFO L93 Difference]: Finished difference Result 139 states and 157 transitions. [2025-04-30 10:20:26,041 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-04-30 10:20:26,041 INFO L79 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.6451612903225805) internal successors, (113), 32 states have internal predecessors, (113), 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 79 [2025-04-30 10:20:26,042 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:26,042 INFO L225 Difference]: With dead ends: 139 [2025-04-30 10:20:26,042 INFO L226 Difference]: Without dead ends: 138 [2025-04-30 10:20:26,043 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2025-04-30 10:20:26,043 INFO L437 NwaCegarLoop]: 33 mSDtfsCounter, 26 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:26,044 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 298 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-30 10:20:26,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2025-04-30 10:20:26,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 124. [2025-04-30 10:20:26,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 118 states have (on average 1.0932203389830508) internal successors, (129), 119 states have internal predecessors, (129), 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) [2025-04-30 10:20:26,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 135 transitions. [2025-04-30 10:20:26,049 INFO L79 Accepts]: Start accepts. Automaton has 124 states and 135 transitions. Word has length 79 [2025-04-30 10:20:26,050 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:26,050 INFO L485 AbstractCegarLoop]: Abstraction has 124 states and 135 transitions. [2025-04-30 10:20:26,050 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.6451612903225805) internal successors, (113), 32 states have internal predecessors, (113), 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) [2025-04-30 10:20:26,050 INFO L278 IsEmpty]: Start isEmpty. Operand 124 states and 135 transitions. [2025-04-30 10:20:26,050 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-04-30 10:20:26,050 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:26,050 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 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] [2025-04-30 10:20:26,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-04-30 10:20:26,251 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-04-30 10:20:26,251 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:26,251 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:26,251 INFO L85 PathProgramCache]: Analyzing trace with hash 19707773, now seen corresponding path program 3 times [2025-04-30 10:20:26,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:26,252 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091931022] [2025-04-30 10:20:26,252 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-30 10:20:26,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:26,267 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 85 statements into 8 equivalence classes. [2025-04-30 10:20:26,285 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 55 of 85 statements. [2025-04-30 10:20:26,287 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-04-30 10:20:26,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:26,871 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2025-04-30 10:20:26,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:26,871 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091931022] [2025-04-30 10:20:26,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091931022] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:26,871 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708777668] [2025-04-30 10:20:26,871 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-30 10:20:26,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:26,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:26,873 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:26,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-04-30 10:20:26,987 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 85 statements into 8 equivalence classes. [2025-04-30 10:20:27,052 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 55 of 85 statements. [2025-04-30 10:20:27,052 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-04-30 10:20:27,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:27,055 INFO L256 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 69 conjuncts are in the unsatisfiable core [2025-04-30 10:20:27,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:27,160 INFO L354 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 [2025-04-30 10:20:27,243 INFO L354 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 15 treesize of output 1 [2025-04-30 10:20:27,361 INFO L354 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 12 treesize of output 4 [2025-04-30 10:20:27,364 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2025-04-30 10:20:27,451 WARN L871 $PredicateComparison]: unable to prove that (and (exists ((|v_node_create_~temp~0#1.base_49| Int)) (and (= (select |c_old(#valid)| |v_node_create_~temp~0#1.base_49|) 0) (= |c_#memory_$Pointer$#1.base| (store |c_old(#memory_$Pointer$#1.base)| |v_node_create_~temp~0#1.base_49| (select |c_#memory_$Pointer$#1.base| |v_node_create_~temp~0#1.base_49|))))) (exists ((|v_ULTIMATE.start_sll_append_~head#1.base_BEFORE_CALL_1| Int)) (= (select (select |c_#memory_$Pointer$#2.offset| |v_ULTIMATE.start_sll_append_~head#1.base_BEFORE_CALL_1|) 0) 0))) is different from true [2025-04-30 10:20:27,480 INFO L325 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2025-04-30 10:20:27,481 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2025-04-30 10:20:27,486 INFO L354 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 21 treesize of output 16 [2025-04-30 10:20:27,592 INFO L354 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 24 treesize of output 8 [2025-04-30 10:20:27,632 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 141 trivial. 4 not checked. [2025-04-30 10:20:27,632 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:20:27,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708777668] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:27,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-30 10:20:27,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 31 [2025-04-30 10:20:27,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427910877] [2025-04-30 10:20:27,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-04-30 10:20:27,762 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-04-30 10:20:27,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:27,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-04-30 10:20:27,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1018, Unknown=2, NotChecked=64, Total=1190 [2025-04-30 10:20:27,764 INFO L87 Difference]: Start difference. First operand 124 states and 135 transitions. Second operand has 31 states, 29 states have (on average 2.103448275862069) internal successors, (61), 25 states have internal predecessors, (61), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-04-30 10:20:28,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:28,192 INFO L93 Difference]: Finished difference Result 232 states and 251 transitions. [2025-04-30 10:20:28,192 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-30 10:20:28,192 INFO L79 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 2.103448275862069) internal successors, (61), 25 states have internal predecessors, (61), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 85 [2025-04-30 10:20:28,192 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:28,194 INFO L225 Difference]: With dead ends: 232 [2025-04-30 10:20:28,194 INFO L226 Difference]: Without dead ends: 133 [2025-04-30 10:20:28,195 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=156, Invalid=1486, Unknown=2, NotChecked=78, Total=1722 [2025-04-30 10:20:28,195 INFO L437 NwaCegarLoop]: 32 mSDtfsCounter, 26 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:28,195 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 513 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 426 Invalid, 0 Unknown, 51 Unchecked, 0.3s Time] [2025-04-30 10:20:28,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2025-04-30 10:20:28,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2025-04-30 10:20:28,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 124 states have (on average 1.0887096774193548) internal successors, (135), 125 states have internal predecessors, (135), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-04-30 10:20:28,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 141 transitions. [2025-04-30 10:20:28,201 INFO L79 Accepts]: Start accepts. Automaton has 131 states and 141 transitions. Word has length 85 [2025-04-30 10:20:28,201 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:28,201 INFO L485 AbstractCegarLoop]: Abstraction has 131 states and 141 transitions. [2025-04-30 10:20:28,201 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 2.103448275862069) internal successors, (61), 25 states have internal predecessors, (61), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-04-30 10:20:28,201 INFO L278 IsEmpty]: Start isEmpty. Operand 131 states and 141 transitions. [2025-04-30 10:20:28,202 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-04-30 10:20:28,202 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:28,202 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 3, 3, 3, 3, 2, 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] [2025-04-30 10:20:28,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-04-30 10:20:28,404 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-04-30 10:20:28,404 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:28,404 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:28,404 INFO L85 PathProgramCache]: Analyzing trace with hash -503296722, now seen corresponding path program 1 times [2025-04-30 10:20:28,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:28,404 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637368428] [2025-04-30 10:20:28,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:28,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:28,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-04-30 10:20:28,427 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-04-30 10:20:28,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:28,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:28,658 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-30 10:20:28,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:28,658 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637368428] [2025-04-30 10:20:28,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637368428] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:28,658 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401289193] [2025-04-30 10:20:28,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:28,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:28,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:28,660 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:28,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-04-30 10:20:28,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-04-30 10:20:28,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-04-30 10:20:28,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:28,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:28,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-04-30 10:20:28,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-30 10:20:28,886 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:20:29,143 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-30 10:20:29,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401289193] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:20:29,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:20:29,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 35 [2025-04-30 10:20:29,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544441098] [2025-04-30 10:20:29,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:20:29,143 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-04-30 10:20:29,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:29,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-04-30 10:20:29,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2025-04-30 10:20:29,144 INFO L87 Difference]: Start difference. First operand 131 states and 141 transitions. Second operand has 36 states, 35 states have (on average 3.6285714285714286) internal successors, (127), 36 states have internal predecessors, (127), 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) [2025-04-30 10:20:29,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:29,216 INFO L93 Difference]: Finished difference Result 156 states and 166 transitions. [2025-04-30 10:20:29,216 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-04-30 10:20:29,216 INFO L79 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.6285714285714286) internal successors, (127), 36 states have internal predecessors, (127), 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 88 [2025-04-30 10:20:29,216 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:29,217 INFO L225 Difference]: With dead ends: 156 [2025-04-30 10:20:29,217 INFO L226 Difference]: Without dead ends: 135 [2025-04-30 10:20:29,217 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2025-04-30 10:20:29,218 INFO L437 NwaCegarLoop]: 32 mSDtfsCounter, 24 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:29,218 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 376 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-30 10:20:29,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2025-04-30 10:20:29,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2025-04-30 10:20:29,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 126 states have (on average 1.0317460317460319) internal successors, (130), 127 states have internal predecessors, (130), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-04-30 10:20:29,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 136 transitions. [2025-04-30 10:20:29,225 INFO L79 Accepts]: Start accepts. Automaton has 133 states and 136 transitions. Word has length 88 [2025-04-30 10:20:29,225 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:29,225 INFO L485 AbstractCegarLoop]: Abstraction has 133 states and 136 transitions. [2025-04-30 10:20:29,225 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.6285714285714286) internal successors, (127), 36 states have internal predecessors, (127), 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) [2025-04-30 10:20:29,225 INFO L278 IsEmpty]: Start isEmpty. Operand 133 states and 136 transitions. [2025-04-30 10:20:29,226 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-04-30 10:20:29,226 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:29,226 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:20:29,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-04-30 10:20:29,427 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-04-30 10:20:29,427 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:29,428 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:29,428 INFO L85 PathProgramCache]: Analyzing trace with hash -632126478, now seen corresponding path program 1 times [2025-04-30 10:20:29,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:29,428 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140550446] [2025-04-30 10:20:29,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:29,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:29,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-04-30 10:20:29,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-04-30 10:20:29,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:29,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:29,972 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-30 10:20:29,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:29,972 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140550446] [2025-04-30 10:20:29,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140550446] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:29,972 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911603281] [2025-04-30 10:20:29,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:20:29,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:29,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:29,974 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:29,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-04-30 10:20:30,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-04-30 10:20:30,152 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-04-30 10:20:30,152 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:20:30,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:30,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-04-30 10:20:30,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:30,256 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-30 10:20:30,257 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:20:31,023 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-30 10:20:31,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911603281] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:20:31,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:20:31,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 63 [2025-04-30 10:20:31,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000647688] [2025-04-30 10:20:31,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:20:31,024 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2025-04-30 10:20:31,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:31,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2025-04-30 10:20:31,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2025-04-30 10:20:31,027 INFO L87 Difference]: Start difference. First operand 133 states and 136 transitions. Second operand has 64 states, 63 states have (on average 3.3492063492063493) internal successors, (211), 64 states have internal predecessors, (211), 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) [2025-04-30 10:20:31,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:31,148 INFO L93 Difference]: Finished difference Result 258 states and 291 transitions. [2025-04-30 10:20:31,148 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-04-30 10:20:31,149 INFO L79 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 3.3492063492063493) internal successors, (211), 64 states have internal predecessors, (211), 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 130 [2025-04-30 10:20:31,149 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:31,150 INFO L225 Difference]: With dead ends: 258 [2025-04-30 10:20:31,150 INFO L226 Difference]: Without dead ends: 257 [2025-04-30 10:20:31,152 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1239 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2025-04-30 10:20:31,152 INFO L437 NwaCegarLoop]: 33 mSDtfsCounter, 68 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:31,152 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 392 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-30 10:20:31,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2025-04-30 10:20:31,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 227. [2025-04-30 10:20:31,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.0863636363636364) internal successors, (239), 221 states have internal predecessors, (239), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-04-30 10:20:31,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 245 transitions. [2025-04-30 10:20:31,164 INFO L79 Accepts]: Start accepts. Automaton has 227 states and 245 transitions. Word has length 130 [2025-04-30 10:20:31,164 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:31,164 INFO L485 AbstractCegarLoop]: Abstraction has 227 states and 245 transitions. [2025-04-30 10:20:31,164 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.3492063492063493) internal successors, (211), 64 states have internal predecessors, (211), 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) [2025-04-30 10:20:31,164 INFO L278 IsEmpty]: Start isEmpty. Operand 227 states and 245 transitions. [2025-04-30 10:20:31,165 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-04-30 10:20:31,165 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:31,165 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 3, 3, 3, 3, 2, 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] [2025-04-30 10:20:31,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-04-30 10:20:31,369 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:31,369 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:31,369 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:31,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1361143426, now seen corresponding path program 2 times [2025-04-30 10:20:31,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:31,369 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633040709] [2025-04-30 10:20:31,369 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:20:31,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:31,382 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 136 statements into 2 equivalence classes. [2025-04-30 10:20:31,397 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 136 of 136 statements. [2025-04-30 10:20:31,397 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-30 10:20:31,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:31,940 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-30 10:20:31,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:31,940 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633040709] [2025-04-30 10:20:31,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633040709] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:31,940 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140743283] [2025-04-30 10:20:31,940 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:20:31,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:31,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:31,942 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:31,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-04-30 10:20:32,062 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 136 statements into 2 equivalence classes. [2025-04-30 10:20:32,127 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 136 of 136 statements. [2025-04-30 10:20:32,127 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-30 10:20:32,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:32,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-04-30 10:20:32,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:32,242 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-30 10:20:32,243 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:20:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-30 10:20:32,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140743283] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:20:32,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:20:32,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 67 [2025-04-30 10:20:32,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593581317] [2025-04-30 10:20:32,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:20:32,951 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2025-04-30 10:20:32,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:32,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2025-04-30 10:20:32,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1127, Invalid=3429, Unknown=0, NotChecked=0, Total=4556 [2025-04-30 10:20:32,953 INFO L87 Difference]: Start difference. First operand 227 states and 245 transitions. Second operand has 68 states, 67 states have (on average 3.328358208955224) internal successors, (223), 68 states have internal predecessors, (223), 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) [2025-04-30 10:20:33,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:33,076 INFO L93 Difference]: Finished difference Result 268 states and 286 transitions. [2025-04-30 10:20:33,076 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2025-04-30 10:20:33,077 INFO L79 Accepts]: Start accepts. Automaton has has 68 states, 67 states have (on average 3.328358208955224) internal successors, (223), 68 states have internal predecessors, (223), 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 136 [2025-04-30 10:20:33,077 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:33,078 INFO L225 Difference]: With dead ends: 268 [2025-04-30 10:20:33,078 INFO L226 Difference]: Without dead ends: 231 [2025-04-30 10:20:33,079 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1411 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1127, Invalid=3429, Unknown=0, NotChecked=0, Total=4556 [2025-04-30 10:20:33,079 INFO L437 NwaCegarLoop]: 32 mSDtfsCounter, 82 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:33,079 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 361 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-30 10:20:33,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2025-04-30 10:20:33,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 229. [2025-04-30 10:20:33,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 222 states have (on average 1.018018018018018) internal successors, (226), 223 states have internal predecessors, (226), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-04-30 10:20:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 232 transitions. [2025-04-30 10:20:33,089 INFO L79 Accepts]: Start accepts. Automaton has 229 states and 232 transitions. Word has length 136 [2025-04-30 10:20:33,089 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:33,089 INFO L485 AbstractCegarLoop]: Abstraction has 229 states and 232 transitions. [2025-04-30 10:20:33,089 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 67 states have (on average 3.328358208955224) internal successors, (223), 68 states have internal predecessors, (223), 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) [2025-04-30 10:20:33,089 INFO L278 IsEmpty]: Start isEmpty. Operand 229 states and 232 transitions. [2025-04-30 10:20:33,090 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2025-04-30 10:20:33,090 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:33,091 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 30, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:20:33,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-04-30 10:20:33,291 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:33,291 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:33,292 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:33,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1270451054, now seen corresponding path program 2 times [2025-04-30 10:20:33,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:33,292 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279732870] [2025-04-30 10:20:33,292 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:20:33,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:33,307 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 226 statements into 2 equivalence classes. [2025-04-30 10:20:33,323 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 226 of 226 statements. [2025-04-30 10:20:33,323 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-30 10:20:33,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:35,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2814 backedges. 0 proven. 2790 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-30 10:20:35,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:35,021 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279732870] [2025-04-30 10:20:35,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279732870] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:35,021 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031511674] [2025-04-30 10:20:35,021 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:20:35,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:35,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:35,023 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:35,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-04-30 10:20:35,162 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 226 statements into 2 equivalence classes. [2025-04-30 10:20:35,255 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 226 of 226 statements. [2025-04-30 10:20:35,255 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-30 10:20:35,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:35,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 63 conjuncts are in the unsatisfiable core [2025-04-30 10:20:35,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:35,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2814 backedges. 0 proven. 2790 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-30 10:20:35,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:20:37,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2814 backedges. 0 proven. 2790 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-04-30 10:20:37,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031511674] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:20:37,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:20:37,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 127 [2025-04-30 10:20:37,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292649555] [2025-04-30 10:20:37,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:20:37,672 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2025-04-30 10:20:37,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:20:37,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2025-04-30 10:20:37,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4159, Invalid=12097, Unknown=0, NotChecked=0, Total=16256 [2025-04-30 10:20:37,676 INFO L87 Difference]: Start difference. First operand 229 states and 232 transitions. Second operand has 128 states, 127 states have (on average 3.173228346456693) internal successors, (403), 128 states have internal predecessors, (403), 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) [2025-04-30 10:20:37,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:20:37,983 INFO L93 Difference]: Finished difference Result 482 states and 547 transitions. [2025-04-30 10:20:37,983 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2025-04-30 10:20:37,984 INFO L79 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 3.173228346456693) internal successors, (403), 128 states have internal predecessors, (403), 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 226 [2025-04-30 10:20:37,984 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:20:37,985 INFO L225 Difference]: With dead ends: 482 [2025-04-30 10:20:37,985 INFO L226 Difference]: Without dead ends: 481 [2025-04-30 10:20:37,989 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5047 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=4159, Invalid=12097, Unknown=0, NotChecked=0, Total=16256 [2025-04-30 10:20:37,990 INFO L437 NwaCegarLoop]: 33 mSDtfsCounter, 208 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-30 10:20:37,990 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 534 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-30 10:20:37,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2025-04-30 10:20:38,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 419. [2025-04-30 10:20:38,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 412 states have (on average 1.0849514563106797) internal successors, (447), 413 states have internal predecessors, (447), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-04-30 10:20:38,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 453 transitions. [2025-04-30 10:20:38,005 INFO L79 Accepts]: Start accepts. Automaton has 419 states and 453 transitions. Word has length 226 [2025-04-30 10:20:38,008 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:20:38,008 INFO L485 AbstractCegarLoop]: Abstraction has 419 states and 453 transitions. [2025-04-30 10:20:38,009 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 3.173228346456693) internal successors, (403), 128 states have internal predecessors, (403), 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) [2025-04-30 10:20:38,009 INFO L278 IsEmpty]: Start isEmpty. Operand 419 states and 453 transitions. [2025-04-30 10:20:38,010 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2025-04-30 10:20:38,010 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:20:38,010 INFO L218 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 3, 3, 3, 3, 2, 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] [2025-04-30 10:20:38,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-04-30 10:20:38,210 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:38,211 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-04-30 10:20:38,211 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:20:38,211 INFO L85 PathProgramCache]: Analyzing trace with hash -301755874, now seen corresponding path program 3 times [2025-04-30 10:20:38,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:20:38,211 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291229303] [2025-04-30 10:20:38,211 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-30 10:20:38,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:20:38,229 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 232 statements into 32 equivalence classes. [2025-04-30 10:20:38,295 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 130 of 232 statements. [2025-04-30 10:20:38,295 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-04-30 10:20:38,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:40,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 420 proven. 20 refuted. 0 times theorem prover too weak. 2436 trivial. 0 not checked. [2025-04-30 10:20:40,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:20:40,365 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291229303] [2025-04-30 10:20:40,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291229303] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:20:40,365 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873405241] [2025-04-30 10:20:40,365 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-30 10:20:40,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:20:40,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:20:40,367 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:20:40,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-04-30 10:20:40,520 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 232 statements into 32 equivalence classes. [2025-04-30 10:20:41,119 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 130 of 232 statements. [2025-04-30 10:20:41,119 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-04-30 10:20:41,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:20:41,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 155 conjuncts are in the unsatisfiable core [2025-04-30 10:20:41,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:20:41,164 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-04-30 10:20:41,278 INFO L354 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 [2025-04-30 10:20:41,295 INFO L354 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 [2025-04-30 10:20:41,470 INFO L325 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-04-30 10:20:41,470 INFO L354 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 1 case distinctions, treesize of input 16 treesize of output 15 [2025-04-30 10:20:41,493 INFO L325 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2025-04-30 10:20:41,494 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2025-04-30 10:20:41,503 INFO L354 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 16 treesize of output 11 [2025-04-30 10:20:41,560 INFO L354 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 27 treesize of output 15 [2025-04-30 10:20:41,564 INFO L354 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 23 treesize of output 22 [2025-04-30 10:20:41,775 INFO L325 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2025-04-30 10:20:41,775 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 31 [2025-04-30 10:20:41,778 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 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 [2025-04-30 10:20:41,782 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 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 [2025-04-30 10:20:41,914 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-04-30 10:20:42,036 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-30 10:20:42,044 INFO L325 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2025-04-30 10:20:42,045 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 48 [2025-04-30 10:20:42,050 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-30 10:20:42,050 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-30 10:20:42,057 INFO L325 Elim1Store]: treesize reduction 41, result has 26.8 percent of original size [2025-04-30 10:20:42,058 INFO L354 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 1 case distinctions, treesize of input 45 treesize of output 40 [2025-04-30 10:20:42,065 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-30 10:20:42,068 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-04-30 10:20:42,071 INFO L325 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2025-04-30 10:20:42,072 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2025-04-30 10:20:42,779 INFO L325 Elim1Store]: treesize reduction 294, result has 24.4 percent of original size [2025-04-30 10:20:42,780 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 269 treesize of output 244 [2025-04-30 10:20:42,832 INFO L325 Elim1Store]: treesize reduction 224, result has 19.1 percent of original size [2025-04-30 10:20:42,832 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 223 treesize of output 199 [2025-04-30 10:20:42,859 INFO L325 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2025-04-30 10:20:42,859 INFO L354 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 1 case distinctions, treesize of input 20 treesize of output 23 [2025-04-30 10:21:21,110 INFO L354 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 923 treesize of output 859 Killed by 15