./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/Addition02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/Addition02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU --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 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:13:17,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:13:17,699 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:13:17,707 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:13:17,709 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:13:17,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:13:17,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:13:17,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:13:17,738 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:13:17,739 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:13:17,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:13:17,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:13:17,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:13:17,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:13:17,741 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:13:17,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:13:17,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:13:17,744 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:13:17,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:13:17,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:13:17,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:13:17,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:13:17,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:13:17,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:13:17,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:13:17,751 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:13:17,752 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:13:17,752 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:13:17,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:13:17,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:13:17,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:13:17,753 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:13:17,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:13:17,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:13:17,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:17,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:13:17,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:13:17,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:13:17,756 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:13:17,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:13:17,757 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:13:17,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:13:17,758 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:13:17,758 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:13:17,758 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 [2024-10-31 22:13:18,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:13:18,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:13:18,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:13:18,111 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:13:18,112 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:13:18,113 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/recursive/Addition02.c Unable to find full path for "g++" [2024-10-31 22:13:20,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:13:20,672 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:13:20,672 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/sv-benchmarks/c/recursive/Addition02.c [2024-10-31 22:13:20,682 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/data/3a34c6daa/fae0c968c5dd459f96489e9643eb5f47/FLAGc76de9a92 [2024-10-31 22:13:20,706 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/data/3a34c6daa/fae0c968c5dd459f96489e9643eb5f47 [2024-10-31 22:13:20,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:13:20,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:13:20,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:20,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:13:20,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:13:20,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:20" (1/1) ... [2024-10-31 22:13:20,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6247fb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:20, skipping insertion in model container [2024-10-31 22:13:20,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:20" (1/1) ... [2024-10-31 22:13:20,768 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:13:21,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:21,084 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:13:21,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:21,120 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:13:21,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21 WrapperNode [2024-10-31 22:13:21,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:21,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:21,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:13:21,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:13:21,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21" (1/1) ... [2024-10-31 22:13:21,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21" (1/1) ... [2024-10-31 22:13:21,179 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2024-10-31 22:13:21,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:21,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:13:21,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:13:21,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:13:21,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21" (1/1) ... [2024-10-31 22:13:21,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21" (1/1) ... [2024-10-31 22:13:21,196 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21" (1/1) ... [2024-10-31 22:13:21,223 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:13:21,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21" (1/1) ... [2024-10-31 22:13:21,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21" (1/1) ... [2024-10-31 22:13:21,237 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21" (1/1) ... [2024-10-31 22:13:21,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21" (1/1) ... [2024-10-31 22:13:21,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21" (1/1) ... [2024-10-31 22:13:21,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21" (1/1) ... [2024-10-31 22:13:21,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:13:21,249 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:13:21,249 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:13:21,249 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:13:21,250 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21" (1/1) ... [2024-10-31 22:13:21,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:21,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:21,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:13:21,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:13:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:13:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:13:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:13:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:13:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2024-10-31 22:13:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2024-10-31 22:13:21,423 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:13:21,425 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:13:21,629 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-10-31 22:13:21,629 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:13:21,643 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:13:21,644 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:13:21,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:21 BoogieIcfgContainer [2024-10-31 22:13:21,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:13:21,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:13:21,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:13:21,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:13:21,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:13:20" (1/3) ... [2024-10-31 22:13:21,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d509f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:21, skipping insertion in model container [2024-10-31 22:13:21,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:21" (2/3) ... [2024-10-31 22:13:21,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d509f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:21, skipping insertion in model container [2024-10-31 22:13:21,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:21" (3/3) ... [2024-10-31 22:13:21,655 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition02.c [2024-10-31 22:13:21,683 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:13:21,683 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-31 22:13:21,745 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:13:21,751 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74bdd4e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:13:21,752 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-31 22:13:21,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 37 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:13:21,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-31 22:13:21,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:21,764 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:21,765 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:13:21,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:21,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1316235390, now seen corresponding path program 1 times [2024-10-31 22:13:21,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:21,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797069387] [2024-10-31 22:13:21,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:21,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:22,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:22,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:22,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797069387] [2024-10-31 22:13:22,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797069387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:22,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:22,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:13:22,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057367222] [2024-10-31 22:13:22,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:22,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:13:22,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:22,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:13:22,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:13:22,087 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 37 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:22,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:13:22,292 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2024-10-31 22:13:22,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:13:22,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-31 22:13:22,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:13:22,311 INFO L225 Difference]: With dead ends: 74 [2024-10-31 22:13:22,312 INFO L226 Difference]: Without dead ends: 62 [2024-10-31 22:13:22,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:13:22,320 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 46 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:13:22,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 122 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:13:22,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-31 22:13:22,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2024-10-31 22:13:22,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 46 states have internal predecessors, (58), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 22:13:22,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2024-10-31 22:13:22,386 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 9 [2024-10-31 22:13:22,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:13:22,387 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2024-10-31 22:13:22,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:22,388 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2024-10-31 22:13:22,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-31 22:13:22,389 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:22,389 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:22,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:13:22,390 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:13:22,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:22,391 INFO L85 PathProgramCache]: Analyzing trace with hash -2146375798, now seen corresponding path program 1 times [2024-10-31 22:13:22,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:22,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265650379] [2024-10-31 22:13:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:22,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:22,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:22,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265650379] [2024-10-31 22:13:22,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265650379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:22,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:22,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:13:22,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079132011] [2024-10-31 22:13:22,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:22,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:13:22,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:22,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:13:22,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:13:22,554 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:22,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:13:22,718 INFO L93 Difference]: Finished difference Result 102 states and 131 transitions. [2024-10-31 22:13:22,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:13:22,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-31 22:13:22,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:13:22,721 INFO L225 Difference]: With dead ends: 102 [2024-10-31 22:13:22,721 INFO L226 Difference]: Without dead ends: 100 [2024-10-31 22:13:22,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:13:22,726 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 43 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:13:22,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 106 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:13:22,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-10-31 22:13:22,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2024-10-31 22:13:22,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.5522388059701493) internal successors, (104), 76 states have internal predecessors, (104), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-31 22:13:22,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 122 transitions. [2024-10-31 22:13:22,762 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 122 transitions. Word has length 10 [2024-10-31 22:13:22,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:13:22,763 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 122 transitions. [2024-10-31 22:13:22,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:22,764 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 122 transitions. [2024-10-31 22:13:22,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:13:22,767 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:22,767 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:22,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:13:22,769 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:13:22,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:22,773 INFO L85 PathProgramCache]: Analyzing trace with hash -2113265089, now seen corresponding path program 1 times [2024-10-31 22:13:22,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:22,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528011481] [2024-10-31 22:13:22,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:22,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:22,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-31 22:13:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:22,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:22,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:22,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528011481] [2024-10-31 22:13:22,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528011481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:22,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:22,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:13:22,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200698919] [2024-10-31 22:13:22,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:22,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:13:22,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:22,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:13:22,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:13:22,882 INFO L87 Difference]: Start difference. First operand 90 states and 122 transitions. 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) [2024-10-31 22:13:22,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:13:22,933 INFO L93 Difference]: Finished difference Result 90 states and 122 transitions. [2024-10-31 22:13:22,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:13:22,935 INFO L78 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 [2024-10-31 22:13:22,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:13:22,937 INFO L225 Difference]: With dead ends: 90 [2024-10-31 22:13:22,937 INFO L226 Difference]: Without dead ends: 89 [2024-10-31 22:13:22,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:13:22,939 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 4 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:13:22,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 101 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:13:22,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-10-31 22:13:22,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-10-31 22:13:22,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 67 states have (on average 1.537313432835821) internal successors, (103), 75 states have internal predecessors, (103), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-31 22:13:22,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 121 transitions. [2024-10-31 22:13:22,965 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 121 transitions. Word has length 11 [2024-10-31 22:13:22,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:13:22,966 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 121 transitions. [2024-10-31 22:13:22,966 INFO L472 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) [2024-10-31 22:13:22,966 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2024-10-31 22:13:22,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:13:22,968 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:22,968 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:22,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:13:22,969 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:13:22,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:22,970 INFO L85 PathProgramCache]: Analyzing trace with hash -2113140224, now seen corresponding path program 1 times [2024-10-31 22:13:22,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:22,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830062958] [2024-10-31 22:13:22,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:22,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:23,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:23,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:23,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830062958] [2024-10-31 22:13:23,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830062958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:23,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:23,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:13:23,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580404448] [2024-10-31 22:13:23,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:23,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:23,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:23,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:23,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:23,056 INFO L87 Difference]: Start difference. First operand 89 states and 121 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:23,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:13:23,100 INFO L93 Difference]: Finished difference Result 97 states and 134 transitions. [2024-10-31 22:13:23,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:23,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-31 22:13:23,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:13:23,106 INFO L225 Difference]: With dead ends: 97 [2024-10-31 22:13:23,106 INFO L226 Difference]: Without dead ends: 96 [2024-10-31 22:13:23,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:23,111 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 6 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:13:23,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 59 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:13:23,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-10-31 22:13:23,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2024-10-31 22:13:23,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 67 states have (on average 1.4776119402985075) internal successors, (99), 74 states have internal predecessors, (99), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-31 22:13:23,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 117 transitions. [2024-10-31 22:13:23,138 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 117 transitions. Word has length 11 [2024-10-31 22:13:23,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:13:23,139 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 117 transitions. [2024-10-31 22:13:23,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:23,139 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 117 transitions. [2024-10-31 22:13:23,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-31 22:13:23,140 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:23,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:23,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:13:23,143 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:13:23,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:23,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1086708271, now seen corresponding path program 1 times [2024-10-31 22:13:23,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:23,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532194540] [2024-10-31 22:13:23,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:23,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:23,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-31 22:13:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:23,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:23,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:23,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532194540] [2024-10-31 22:13:23,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532194540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:23,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:23,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:13:23,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414502173] [2024-10-31 22:13:23,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:23,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:13:23,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:23,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:13:23,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:13:23,251 INFO L87 Difference]: Start difference. First operand 88 states and 117 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) [2024-10-31 22:13:23,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:13:23,284 INFO L93 Difference]: Finished difference Result 88 states and 117 transitions. [2024-10-31 22:13:23,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:13:23,288 INFO L78 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 [2024-10-31 22:13:23,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:13:23,289 INFO L225 Difference]: With dead ends: 88 [2024-10-31 22:13:23,289 INFO L226 Difference]: Without dead ends: 68 [2024-10-31 22:13:23,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:13:23,293 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 3 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:13:23,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 98 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:13:23,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-31 22:13:23,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2024-10-31 22:13:23,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 49 states have internal predecessors, (59), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:23,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2024-10-31 22:13:23,309 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 12 [2024-10-31 22:13:23,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:13:23,310 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2024-10-31 22:13:23,310 INFO L472 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) [2024-10-31 22:13:23,310 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2024-10-31 22:13:23,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-31 22:13:23,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:23,311 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:23,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:13:23,311 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:13:23,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:23,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1072309289, now seen corresponding path program 1 times [2024-10-31 22:13:23,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:23,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528726016] [2024-10-31 22:13:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:23,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:23,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:23,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:23,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528726016] [2024-10-31 22:13:23,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528726016] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:23,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:23,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:13:23,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845792590] [2024-10-31 22:13:23,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:23,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:13:23,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:23,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:13:23,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:13:23,399 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 5 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:23,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:13:23,472 INFO L93 Difference]: Finished difference Result 79 states and 90 transitions. [2024-10-31 22:13:23,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:13:23,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-31 22:13:23,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:13:23,478 INFO L225 Difference]: With dead ends: 79 [2024-10-31 22:13:23,478 INFO L226 Difference]: Without dead ends: 45 [2024-10-31 22:13:23,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:13:23,479 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 20 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:13:23,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 66 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:13:23,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-31 22:13:23,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2024-10-31 22:13:23,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 37 states have internal predecessors, (41), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:23,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2024-10-31 22:13:23,492 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 12 [2024-10-31 22:13:23,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:13:23,493 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2024-10-31 22:13:23,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:23,493 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2024-10-31 22:13:23,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-31 22:13:23,494 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:23,494 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:23,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:13:23,494 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:13:23,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:23,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1082837428, now seen corresponding path program 1 times [2024-10-31 22:13:23,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:23,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982730817] [2024-10-31 22:13:23,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:23,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:23,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:23,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:23,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982730817] [2024-10-31 22:13:23,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982730817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:23,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:23,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:13:23,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46632748] [2024-10-31 22:13:23,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:23,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:13:23,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:23,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:13:23,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:13:23,569 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 5 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:23,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:13:23,639 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2024-10-31 22:13:23,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:13:23,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-31 22:13:23,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:13:23,641 INFO L225 Difference]: With dead ends: 49 [2024-10-31 22:13:23,641 INFO L226 Difference]: Without dead ends: 47 [2024-10-31 22:13:23,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:13:23,644 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 32 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:13:23,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 54 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:13:23,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-10-31 22:13:23,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 40. [2024-10-31 22:13:23,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 30 states have (on average 1.3) internal successors, (39), 36 states have internal predecessors, (39), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:23,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2024-10-31 22:13:23,654 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 12 [2024-10-31 22:13:23,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:13:23,654 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2024-10-31 22:13:23,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2024-10-31 22:13:23,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-31 22:13:23,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:23,655 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:23,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:13:23,656 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:13:23,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:23,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2121363603, now seen corresponding path program 1 times [2024-10-31 22:13:23,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:23,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127805887] [2024-10-31 22:13:23,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:23,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:23,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:23,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127805887] [2024-10-31 22:13:23,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127805887] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:13:23,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907497027] [2024-10-31 22:13:23,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:23,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:23,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:23,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:13:23,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:13:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:23,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:13:23,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:13:23,933 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:23,933 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:13:24,039 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:24,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907497027] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:13:24,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:13:24,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-10-31 22:13:24,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657164418] [2024-10-31 22:13:24,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:13:24,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:13:24,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:24,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:13:24,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:13:24,043 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:24,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:13:24,230 INFO L93 Difference]: Finished difference Result 147 states and 166 transitions. [2024-10-31 22:13:24,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:13:24,231 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-10-31 22:13:24,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:13:24,232 INFO L225 Difference]: With dead ends: 147 [2024-10-31 22:13:24,232 INFO L226 Difference]: Without dead ends: 145 [2024-10-31 22:13:24,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:13:24,234 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 137 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:13:24,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 173 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:13:24,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-10-31 22:13:24,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 109. [2024-10-31 22:13:24,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 91 states have (on average 1.2967032967032968) internal successors, (118), 98 states have internal predecessors, (118), 12 states have call successors, (12), 10 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:24,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 130 transitions. [2024-10-31 22:13:24,248 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 130 transitions. Word has length 18 [2024-10-31 22:13:24,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:13:24,249 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 130 transitions. [2024-10-31 22:13:24,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:24,249 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 130 transitions. [2024-10-31 22:13:24,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-31 22:13:24,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:24,250 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:24,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:13:24,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:24,454 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:13:24,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:24,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1489573626, now seen corresponding path program 1 times [2024-10-31 22:13:24,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:24,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636467476] [2024-10-31 22:13:24,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:24,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:24,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:24,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:24,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636467476] [2024-10-31 22:13:24,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636467476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:24,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:24,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:13:24,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225624736] [2024-10-31 22:13:24,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:24,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:13:24,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:24,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:13:24,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:13:24,557 INFO L87 Difference]: Start difference. First operand 109 states and 130 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:24,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:13:24,607 INFO L93 Difference]: Finished difference Result 110 states and 130 transitions. [2024-10-31 22:13:24,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:13:24,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-10-31 22:13:24,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:13:24,609 INFO L225 Difference]: With dead ends: 110 [2024-10-31 22:13:24,609 INFO L226 Difference]: Without dead ends: 43 [2024-10-31 22:13:24,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:13:24,612 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:13:24,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 29 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:13:24,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-31 22:13:24,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-10-31 22:13:24,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.027027027027027) internal successors, (38), 37 states have internal predecessors, (38), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:24,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2024-10-31 22:13:24,621 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 20 [2024-10-31 22:13:24,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:13:24,621 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2024-10-31 22:13:24,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:24,622 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2024-10-31 22:13:24,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-31 22:13:24,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:24,623 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:24,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:13:24,623 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:13:24,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:24,624 INFO L85 PathProgramCache]: Analyzing trace with hash -459270890, now seen corresponding path program 2 times [2024-10-31 22:13:24,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:24,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41089891] [2024-10-31 22:13:24,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:24,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:24,866 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:24,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:24,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41089891] [2024-10-31 22:13:24,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41089891] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:13:24,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74358257] [2024-10-31 22:13:24,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:13:24,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:24,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:24,870 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:13:24,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:13:24,938 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:13:24,939 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:13:24,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:13:24,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:13:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:25,040 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:13:25,301 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:25,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74358257] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:13:25,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:13:25,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-10-31 22:13:25,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419326793] [2024-10-31 22:13:25,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:13:25,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-31 22:13:25,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:25,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-31 22:13:25,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2024-10-31 22:13:25,304 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 14 states have internal predecessors, (72), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:25,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:13:25,582 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2024-10-31 22:13:25,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-31 22:13:25,583 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 14 states have internal predecessors, (72), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-10-31 22:13:25,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:13:25,584 INFO L225 Difference]: With dead ends: 95 [2024-10-31 22:13:25,584 INFO L226 Difference]: Without dead ends: 94 [2024-10-31 22:13:25,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2024-10-31 22:13:25,586 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 155 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:13:25,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 130 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:13:25,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-31 22:13:25,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2024-10-31 22:13:25,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 79 states have (on average 1.0126582278481013) internal successors, (80), 79 states have internal predecessors, (80), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:25,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2024-10-31 22:13:25,603 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 42 [2024-10-31 22:13:25,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:13:25,604 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 91 transitions. [2024-10-31 22:13:25,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 14 states have internal predecessors, (72), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:25,604 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2024-10-31 22:13:25,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-31 22:13:25,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:25,606 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:25,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:13:25,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:25,807 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:13:25,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:25,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1937793176, now seen corresponding path program 3 times [2024-10-31 22:13:25,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:25,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498759626] [2024-10-31 22:13:25,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:25,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:26,526 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:26,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:26,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498759626] [2024-10-31 22:13:26,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498759626] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:13:26,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952747476] [2024-10-31 22:13:26,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:13:26,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:26,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:26,529 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:13:26,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:13:26,616 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-31 22:13:26,616 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:13:26,617 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-31 22:13:26,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:13:26,818 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:26,819 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:13:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:27,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952747476] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:13:27,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:13:27,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-10-31 22:13:27,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905957569] [2024-10-31 22:13:27,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:13:27,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-10-31 22:13:27,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:27,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-31 22:13:27,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2024-10-31 22:13:27,727 INFO L87 Difference]: Start difference. First operand 91 states and 91 transitions. Second operand has 48 states, 47 states have (on average 3.3191489361702127) internal successors, (156), 26 states have internal predecessors, (156), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:28,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:13:28,592 INFO L93 Difference]: Finished difference Result 191 states and 202 transitions. [2024-10-31 22:13:28,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-31 22:13:28,594 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.3191489361702127) internal successors, (156), 26 states have internal predecessors, (156), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-10-31 22:13:28,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:13:28,596 INFO L225 Difference]: With dead ends: 191 [2024-10-31 22:13:28,598 INFO L226 Difference]: Without dead ends: 190 [2024-10-31 22:13:28,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2024-10-31 22:13:28,601 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 407 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:13:28,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 239 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:13:28,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-10-31 22:13:28,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2024-10-31 22:13:28,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 163 states have (on average 1.0061349693251533) internal successors, (164), 163 states have internal predecessors, (164), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 187 transitions. [2024-10-31 22:13:28,630 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 187 transitions. Word has length 90 [2024-10-31 22:13:28,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:13:28,631 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 187 transitions. [2024-10-31 22:13:28,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.3191489361702127) internal successors, (156), 26 states have internal predecessors, (156), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:28,632 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 187 transitions. [2024-10-31 22:13:28,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-10-31 22:13:28,639 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:28,639 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:28,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:13:28,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:28,844 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:13:28,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:28,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1611444236, now seen corresponding path program 4 times [2024-10-31 22:13:28,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:28,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872466067] [2024-10-31 22:13:28,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:28,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:31,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:31,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:31,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872466067] [2024-10-31 22:13:31,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872466067] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:13:31,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2701364] [2024-10-31 22:13:31,395 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 22:13:31,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:31,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:31,397 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:13:31,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:13:31,506 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 22:13:31,506 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:13:31,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-31 22:13:31,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:13:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:31,910 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:13:34,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:34,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2701364] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:13:34,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:13:34,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2024-10-31 22:13:34,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912990158] [2024-10-31 22:13:34,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:13:34,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-10-31 22:13:34,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:34,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-10-31 22:13:34,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2024-10-31 22:13:34,854 INFO L87 Difference]: Start difference. First operand 187 states and 187 transitions. Second operand has 96 states, 95 states have (on average 3.4105263157894736) internal successors, (324), 50 states have internal predecessors, (324), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:37,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:13:37,386 INFO L93 Difference]: Finished difference Result 383 states and 406 transitions. [2024-10-31 22:13:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-10-31 22:13:37,386 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 3.4105263157894736) internal successors, (324), 50 states have internal predecessors, (324), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 186 [2024-10-31 22:13:37,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:13:37,389 INFO L225 Difference]: With dead ends: 383 [2024-10-31 22:13:37,389 INFO L226 Difference]: Without dead ends: 382 [2024-10-31 22:13:37,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2024-10-31 22:13:37,394 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 932 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:13:37,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 458 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:13:37,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-10-31 22:13:37,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 379. [2024-10-31 22:13:37,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 331 states have (on average 1.0030211480362539) internal successors, (332), 331 states have internal predecessors, (332), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:37,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 379 transitions. [2024-10-31 22:13:37,421 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 379 transitions. Word has length 186 [2024-10-31 22:13:37,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:13:37,422 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 379 transitions. [2024-10-31 22:13:37,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 3.4105263157894736) internal successors, (324), 50 states have internal predecessors, (324), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:37,423 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 379 transitions. [2024-10-31 22:13:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-10-31 22:13:37,432 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:13:37,432 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:37,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:13:37,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:37,636 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:13:37,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:37,637 INFO L85 PathProgramCache]: Analyzing trace with hash 624869716, now seen corresponding path program 5 times [2024-10-31 22:13:37,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:37,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569398155] [2024-10-31 22:13:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:37,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:45,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:45,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569398155] [2024-10-31 22:13:45,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569398155] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:13:45,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632994924] [2024-10-31 22:13:45,534 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-31 22:13:45,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:13:45,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:45,539 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:13:45,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6136d0e9-b219-45b1-9b38-475cc10de6a6/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:13:45,811 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-10-31 22:13:45,811 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:13:45,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-10-31 22:13:45,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:13:46,471 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:46,471 INFO L311 TraceCheckSpWp]: Computing backward predicates...