./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-ext-properties/simple-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-ext-properties/simple-ext.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:08:23,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:08:23,173 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:08:23,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:08:23,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:08:23,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:08:23,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:08:23,208 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:08:23,209 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:08:23,210 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:08:23,210 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:08:23,211 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:08:23,212 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:08:23,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:08:23,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:08:23,214 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:08:23,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:08:23,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:08:23,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:08:23,216 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:08:23,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:08:23,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:08:23,218 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:08:23,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:08:23,219 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:08:23,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:08:23,220 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:08:23,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:08:23,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:08:23,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:08:23,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:23,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:08:23,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:08:23,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:08:23,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:08:23,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:08:23,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:08:23,227 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:08:23,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:08:23,228 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:08:23,229 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:08:23,229 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_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 [2023-11-12 02:08:23,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:08:23,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:08:23,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:08:23,545 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:08:23,545 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:08:23,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/list-ext-properties/simple-ext.i [2023-11-12 02:08:26,882 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:08:27,202 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:08:27,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/sv-benchmarks/c/list-ext-properties/simple-ext.i [2023-11-12 02:08:27,232 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/data/b1ae36585/39d06578a84b40aaa3b84026fb6e4493/FLAG9962044fd [2023-11-12 02:08:27,250 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/data/b1ae36585/39d06578a84b40aaa3b84026fb6e4493 [2023-11-12 02:08:27,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:08:27,259 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:08:27,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:27,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:08:27,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:08:27,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:27" (1/1) ... [2023-11-12 02:08:27,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc8aa98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27, skipping insertion in model container [2023-11-12 02:08:27,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:27" (1/1) ... [2023-11-12 02:08:27,330 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:08:27,731 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:27,742 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:08:27,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:27,827 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:08:27,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27 WrapperNode [2023-11-12 02:08:27,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:27,829 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:27,829 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:08:27,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:08:27,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27" (1/1) ... [2023-11-12 02:08:27,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27" (1/1) ... [2023-11-12 02:08:27,878 INFO L138 Inliner]: procedures = 124, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2023-11-12 02:08:27,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:27,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:08:27,880 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:08:27,880 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:08:27,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27" (1/1) ... [2023-11-12 02:08:27,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27" (1/1) ... [2023-11-12 02:08:27,905 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27" (1/1) ... [2023-11-12 02:08:27,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27" (1/1) ... [2023-11-12 02:08:27,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27" (1/1) ... [2023-11-12 02:08:27,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27" (1/1) ... [2023-11-12 02:08:27,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27" (1/1) ... [2023-11-12 02:08:27,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27" (1/1) ... [2023-11-12 02:08:27,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:08:27,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:08:27,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:08:27,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:08:27,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27" (1/1) ... [2023-11-12 02:08:27,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:27,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:27,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:08:28,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:08:28,032 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2023-11-12 02:08:28,032 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2023-11-12 02:08:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:08:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:08:28,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:08:28,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:08:28,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:08:28,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:08:28,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:08:28,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:08:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:08:28,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:08:28,156 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:08:28,158 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:08:28,217 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2023-11-12 02:08:28,388 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:08:28,395 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:08:28,396 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 02:08:28,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:28 BoogieIcfgContainer [2023-11-12 02:08:28,398 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:08:28,401 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:08:28,401 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:08:28,405 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:08:28,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:08:27" (1/3) ... [2023-11-12 02:08:28,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed31f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:28, skipping insertion in model container [2023-11-12 02:08:28,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:27" (2/3) ... [2023-11-12 02:08:28,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed31f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:28, skipping insertion in model container [2023-11-12 02:08:28,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:28" (3/3) ... [2023-11-12 02:08:28,439 INFO L112 eAbstractionObserver]: Analyzing ICFG simple-ext.i [2023-11-12 02:08:28,462 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:08:28,462 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 02:08:28,511 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:08:28,518 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48cc828f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:08:28,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-12 02:08:28,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 32 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:28,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 02:08:28,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:28,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:28,538 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:28,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:28,546 INFO L85 PathProgramCache]: Analyzing trace with hash -342662705, now seen corresponding path program 1 times [2023-11-12 02:08:28,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:28,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031675915] [2023-11-12 02:08:28,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:28,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:28,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:28,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:28,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031675915] [2023-11-12 02:08:28,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031675915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:28,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:28,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:08:28,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111338177] [2023-11-12 02:08:28,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:28,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:08:28,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:29,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:08:29,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:08:29,009 INFO L87 Difference]: Start difference. First operand has 34 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 32 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:29,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:29,104 INFO L93 Difference]: Finished difference Result 74 states and 99 transitions. [2023-11-12 02:08:29,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:08:29,107 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-12 02:08:29,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:29,114 INFO L225 Difference]: With dead ends: 74 [2023-11-12 02:08:29,114 INFO L226 Difference]: Without dead ends: 36 [2023-11-12 02:08:29,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:08:29,122 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 19 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:29,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 86 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:29,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-12 02:08:29,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2023-11-12 02:08:29,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:29,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2023-11-12 02:08:29,168 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 10 [2023-11-12 02:08:29,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:29,169 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-11-12 02:08:29,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:29,170 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2023-11-12 02:08:29,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 02:08:29,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:29,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:29,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:08:29,173 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:29,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:29,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1366136777, now seen corresponding path program 1 times [2023-11-12 02:08:29,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:29,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584838331] [2023-11-12 02:08:29,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:29,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:29,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:29,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:29,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584838331] [2023-11-12 02:08:29,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584838331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:29,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:29,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:08:29,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94706420] [2023-11-12 02:08:29,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:29,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:08:29,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:29,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:08:29,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:08:29,342 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:29,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:29,399 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2023-11-12 02:08:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:08:29,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-12 02:08:29,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:29,401 INFO L225 Difference]: With dead ends: 36 [2023-11-12 02:08:29,402 INFO L226 Difference]: Without dead ends: 34 [2023-11-12 02:08:29,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:08:29,404 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 11 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:29,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 43 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:29,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-12 02:08:29,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2023-11-12 02:08:29,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 32 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:29,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2023-11-12 02:08:29,413 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 12 [2023-11-12 02:08:29,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:29,413 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2023-11-12 02:08:29,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:29,414 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-11-12 02:08:29,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:08:29,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:29,416 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:29,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:08:29,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:29,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:29,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1821035183, now seen corresponding path program 1 times [2023-11-12 02:08:29,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:29,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653416382] [2023-11-12 02:08:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:29,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:29,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:08:29,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:29,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653416382] [2023-11-12 02:08:29,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653416382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:29,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:29,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:08:29,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828020321] [2023-11-12 02:08:29,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:29,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:08:29,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:29,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:08:29,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:08:29,722 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:29,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:29,845 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2023-11-12 02:08:29,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:08:29,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-12 02:08:29,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:29,848 INFO L225 Difference]: With dead ends: 46 [2023-11-12 02:08:29,851 INFO L226 Difference]: Without dead ends: 33 [2023-11-12 02:08:29,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:08:29,859 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:29,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 58 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:29,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-12 02:08:29,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-11-12 02:08:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:29,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2023-11-12 02:08:29,868 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 17 [2023-11-12 02:08:29,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:29,869 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2023-11-12 02:08:29,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:29,869 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2023-11-12 02:08:29,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:08:29,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:29,871 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:29,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:08:29,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:29,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:29,877 INFO L85 PathProgramCache]: Analyzing trace with hash 941725797, now seen corresponding path program 1 times [2023-11-12 02:08:29,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:29,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201306886] [2023-11-12 02:08:29,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:29,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:30,015 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:30,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:30,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201306886] [2023-11-12 02:08:30,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201306886] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:30,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952484777] [2023-11-12 02:08:30,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:30,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:30,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:30,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:30,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:08:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:30,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:08:30,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:30,257 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:30,257 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:30,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952484777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:30,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:08:30,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-12 02:08:30,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108194331] [2023-11-12 02:08:30,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:30,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:08:30,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:30,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:08:30,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:08:30,264 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:30,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:30,363 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2023-11-12 02:08:30,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:08:30,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-12 02:08:30,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:30,367 INFO L225 Difference]: With dead ends: 33 [2023-11-12 02:08:30,367 INFO L226 Difference]: Without dead ends: 32 [2023-11-12 02:08:30,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:08:30,376 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 16 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:30,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 62 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:30,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-12 02:08:30,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-12 02:08:30,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.206896551724138) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:30,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2023-11-12 02:08:30,390 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 17 [2023-11-12 02:08:30,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:30,391 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2023-11-12 02:08:30,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:30,391 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2023-11-12 02:08:30,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 02:08:30,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:30,392 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:30,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:30,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:30,602 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:30,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:30,603 INFO L85 PathProgramCache]: Analyzing trace with hash -871271292, now seen corresponding path program 1 times [2023-11-12 02:08:30,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:30,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933487991] [2023-11-12 02:08:30,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:30,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:30,778 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:08:30,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:30,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933487991] [2023-11-12 02:08:30,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933487991] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:30,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:30,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:08:30,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251878171] [2023-11-12 02:08:30,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:30,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:08:30,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:30,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:08:30,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:08:30,783 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:30,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:30,844 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2023-11-12 02:08:30,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:08:30,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-12 02:08:30,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:30,846 INFO L225 Difference]: With dead ends: 34 [2023-11-12 02:08:30,846 INFO L226 Difference]: Without dead ends: 33 [2023-11-12 02:08:30,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:08:30,848 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:30,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 41 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:30,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-12 02:08:30,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2023-11-12 02:08:30,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:30,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-11-12 02:08:30,861 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2023-11-12 02:08:30,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:30,862 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-11-12 02:08:30,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:30,862 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-11-12 02:08:30,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:08:30,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:30,865 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:30,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:08:30,865 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:30,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:30,867 INFO L85 PathProgramCache]: Analyzing trace with hash 143559163, now seen corresponding path program 1 times [2023-11-12 02:08:30,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:30,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768130318] [2023-11-12 02:08:30,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:30,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:31,017 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:08:31,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:31,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768130318] [2023-11-12 02:08:31,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768130318] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:31,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570642914] [2023-11-12 02:08:31,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:31,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:31,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:31,020 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:31,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:08:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:31,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:08:31,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:31,206 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:08:31,207 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:08:31,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570642914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:31,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:08:31,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-12 02:08:31,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253349778] [2023-11-12 02:08:31,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:31,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:08:31,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:31,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:08:31,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:08:31,210 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:31,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:31,270 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2023-11-12 02:08:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:08:31,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-11-12 02:08:31,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:31,272 INFO L225 Difference]: With dead ends: 31 [2023-11-12 02:08:31,272 INFO L226 Difference]: Without dead ends: 30 [2023-11-12 02:08:31,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:08:31,276 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:31,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 42 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:31,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-12 02:08:31,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2023-11-12 02:08:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2023-11-12 02:08:31,289 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 24 [2023-11-12 02:08:31,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:31,290 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2023-11-12 02:08:31,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:31,291 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2023-11-12 02:08:31,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:08:31,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:31,292 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:31,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:31,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 02:08:31,505 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:31,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:31,506 INFO L85 PathProgramCache]: Analyzing trace with hash 155366863, now seen corresponding path program 1 times [2023-11-12 02:08:31,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:31,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371908518] [2023-11-12 02:08:31,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:31,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:08:31,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:31,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371908518] [2023-11-12 02:08:31,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371908518] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:31,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692192823] [2023-11-12 02:08:31,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:31,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:31,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:31,645 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:31,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:08:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:31,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:08:31,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:31,833 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:08:31,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:08:31,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692192823] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:31,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:08:31,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-12 02:08:31,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76766161] [2023-11-12 02:08:31,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:31,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:08:31,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:31,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:08:31,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:08:31,915 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:32,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:32,048 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2023-11-12 02:08:32,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:08:32,049 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-12 02:08:32,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:32,052 INFO L225 Difference]: With dead ends: 46 [2023-11-12 02:08:32,053 INFO L226 Difference]: Without dead ends: 45 [2023-11-12 02:08:32,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:08:32,055 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 28 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:32,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 69 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:32,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-12 02:08:32,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2023-11-12 02:08:32,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.1) internal successors, (44), 40 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:32,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2023-11-12 02:08:32,064 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 25 [2023-11-12 02:08:32,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:32,065 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2023-11-12 02:08:32,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:32,065 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2023-11-12 02:08:32,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-12 02:08:32,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:32,068 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:32,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:32,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-12 02:08:32,275 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:32,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:32,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1630353515, now seen corresponding path program 2 times [2023-11-12 02:08:32,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:32,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950411962] [2023-11-12 02:08:32,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:32,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:08:32,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:32,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950411962] [2023-11-12 02:08:32,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950411962] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:32,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804237466] [2023-11-12 02:08:32,523 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:08:32,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:32,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:32,524 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:32,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:08:32,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:08:32,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:08:32,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 02:08:32,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:32,765 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:08:32,765 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:32,994 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:08:32,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804237466] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:32,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:08:32,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-11-12 02:08:32,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199295519] [2023-11-12 02:08:32,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:32,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-12 02:08:32,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:32,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-12 02:08:33,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-11-12 02:08:33,002 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:33,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:33,293 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2023-11-12 02:08:33,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-12 02:08:33,294 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2023-11-12 02:08:33,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:33,297 INFO L225 Difference]: With dead ends: 76 [2023-11-12 02:08:33,298 INFO L226 Difference]: Without dead ends: 75 [2023-11-12 02:08:33,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2023-11-12 02:08:33,300 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 62 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:33,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 107 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:08:33,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-12 02:08:33,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2023-11-12 02:08:33,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0571428571428572) internal successors, (74), 70 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:33,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 74 transitions. [2023-11-12 02:08:33,319 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 74 transitions. Word has length 40 [2023-11-12 02:08:33,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:33,320 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 74 transitions. [2023-11-12 02:08:33,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:33,320 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 74 transitions. [2023-11-12 02:08:33,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-12 02:08:33,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:33,330 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:33,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:33,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-12 02:08:33,536 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:33,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:33,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1786334229, now seen corresponding path program 3 times [2023-11-12 02:08:33,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:33,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396226568] [2023-11-12 02:08:33,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:33,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:34,264 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:08:34,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:34,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396226568] [2023-11-12 02:08:34,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396226568] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:34,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864844067] [2023-11-12 02:08:34,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:08:34,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:34,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:34,267 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:34,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:08:34,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-12 02:08:34,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:08:34,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-12 02:08:34,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:34,461 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-12 02:08:34,589 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 02:08:34,608 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-12 02:08:34,609 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-12 02:08:34,690 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-12 02:08:34,791 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-12 02:08:34,845 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2023-11-12 02:08:34,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:34,912 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_354 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_354) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) is different from false [2023-11-12 02:08:34,981 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_352 (Array Int Int)) (v_ArrVal_354 (Array Int Int))) (or (not (= v_ArrVal_352 (let ((.cse0 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) .cse0 (select v_ArrVal_352 .cse0))))) (not (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_352) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_354) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) is different from false [2023-11-12 02:08:35,027 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:08:35,028 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 79 [2023-11-12 02:08:35,039 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2023-11-12 02:08:35,126 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-12 02:08:35,135 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2023-11-12 02:08:35,332 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 3 not checked. [2023-11-12 02:08:35,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864844067] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:35,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:08:35,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 8, 8] total 36 [2023-11-12 02:08:35,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110576475] [2023-11-12 02:08:35,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:35,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-12 02:08:35,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:35,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-12 02:08:35,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=929, Unknown=2, NotChecked=130, Total=1260 [2023-11-12 02:08:35,338 INFO L87 Difference]: Start difference. First operand 71 states and 74 transitions. Second operand has 36 states, 36 states have (on average 2.9444444444444446) internal successors, (106), 36 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:36,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:36,363 INFO L93 Difference]: Finished difference Result 142 states and 148 transitions. [2023-11-12 02:08:36,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-12 02:08:36,363 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.9444444444444446) internal successors, (106), 36 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-11-12 02:08:36,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:36,364 INFO L225 Difference]: With dead ends: 142 [2023-11-12 02:08:36,364 INFO L226 Difference]: Without dead ends: 85 [2023-11-12 02:08:36,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 738 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=769, Invalid=2777, Unknown=2, NotChecked=234, Total=3782 [2023-11-12 02:08:36,367 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 260 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 176 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:36,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 112 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 167 Invalid, 0 Unknown, 176 Unchecked, 0.2s Time] [2023-11-12 02:08:36,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-12 02:08:36,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2023-11-12 02:08:36,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.0609756097560976) internal successors, (87), 82 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:36,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2023-11-12 02:08:36,376 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 70 [2023-11-12 02:08:36,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:36,376 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2023-11-12 02:08:36,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.9444444444444446) internal successors, (106), 36 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:36,377 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2023-11-12 02:08:36,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-12 02:08:36,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:36,378 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:36,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:36,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:36,594 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:36,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:36,595 INFO L85 PathProgramCache]: Analyzing trace with hash -345949831, now seen corresponding path program 4 times [2023-11-12 02:08:36,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:36,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764481829] [2023-11-12 02:08:36,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:36,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:08:37,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:37,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764481829] [2023-11-12 02:08:37,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764481829] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:37,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838137618] [2023-11-12 02:08:37,397 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 02:08:37,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:37,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:37,405 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:37,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:08:37,553 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 02:08:37,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:08:37,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-12 02:08:37,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:37,567 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-12 02:08:37,666 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 02:08:37,688 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-12 02:08:37,688 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-12 02:08:37,778 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-12 02:08:37,875 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-12 02:08:37,892 INFO L322 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-11-12 02:08:37,893 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-11-12 02:08:37,958 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-12 02:08:38,069 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-12 02:08:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2023-11-12 02:08:38,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:38,190 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_446 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_446) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) is different from false [2023-11-12 02:08:38,221 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_446 (Array Int Int)) (v_ArrVal_444 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_444) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_446) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) is different from false [2023-11-12 02:08:38,238 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_446 (Array Int Int)) (|v_ULTIMATE.start_main_~t~0#1.base_11| Int) (v_ArrVal_444 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~t~0#1.base_11|) 0)) (not (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_444) |v_ULTIMATE.start_main_~t~0#1.base_11| v_ArrVal_446) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) is different from false [2023-11-12 02:08:38,293 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_446 (Array Int Int)) (v_ArrVal_441 (Array Int Int)) (|v_ULTIMATE.start_main_~t~0#1.base_11| Int) (v_ArrVal_444 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_~t~0#1.base_11|) 0)) (not (= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_441) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_444) |v_ULTIMATE.start_main_~t~0#1.base_11| v_ArrVal_446) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (not (= v_ArrVal_441 (let ((.cse0 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) .cse0 (select v_ArrVal_441 .cse0))))))) is different from false [2023-11-12 02:08:38,335 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:08:38,336 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1049 treesize of output 1039 [2023-11-12 02:08:38,382 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 122 [2023-11-12 02:08:38,400 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 114 [2023-11-12 02:08:38,462 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-12 02:08:38,469 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2023-11-12 02:08:38,802 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 13 not checked. [2023-11-12 02:08:38,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838137618] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:38,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:08:38,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 10, 10] total 42 [2023-11-12 02:08:38,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252172312] [2023-11-12 02:08:38,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:38,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-11-12 02:08:38,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:38,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-11-12 02:08:38,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1178, Unknown=4, NotChecked=300, Total=1722 [2023-11-12 02:08:38,806 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand has 42 states, 42 states have (on average 2.9761904761904763) internal successors, (125), 42 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:40,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:40,037 INFO L93 Difference]: Finished difference Result 159 states and 166 transitions. [2023-11-12 02:08:40,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-12 02:08:40,038 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.9761904761904763) internal successors, (125), 42 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-11-12 02:08:40,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:40,039 INFO L225 Difference]: With dead ends: 159 [2023-11-12 02:08:40,039 INFO L226 Difference]: Without dead ends: 97 [2023-11-12 02:08:40,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 951 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=905, Invalid=3529, Unknown=4, NotChecked=532, Total=4970 [2023-11-12 02:08:40,043 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 163 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 405 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:40,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 165 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 261 Invalid, 0 Unknown, 405 Unchecked, 0.2s Time] [2023-11-12 02:08:40,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-12 02:08:40,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2023-11-12 02:08:40,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.0638297872340425) internal successors, (100), 94 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:40,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 100 transitions. [2023-11-12 02:08:40,051 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 100 transitions. Word has length 82 [2023-11-12 02:08:40,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:40,052 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 100 transitions. [2023-11-12 02:08:40,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.9761904761904763) internal successors, (125), 42 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:40,052 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 100 transitions. [2023-11-12 02:08:40,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-12 02:08:40,053 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:40,053 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 12, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:40,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:40,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:08:40,265 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:40,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:40,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1995502165, now seen corresponding path program 5 times [2023-11-12 02:08:40,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:40,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744138219] [2023-11-12 02:08:40,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:40,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:41,106 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:08:41,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:41,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744138219] [2023-11-12 02:08:41,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744138219] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:41,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509816224] [2023-11-12 02:08:41,107 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-12 02:08:41,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:41,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:41,113 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:41,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:08:41,387 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2023-11-12 02:08:41,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:08:41,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-12 02:08:41,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:41,528 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:08:41,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:08:42,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509816224] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:42,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:08:42,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 55 [2023-11-12 02:08:42,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368120723] [2023-11-12 02:08:42,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:42,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2023-11-12 02:08:42,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:42,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2023-11-12 02:08:42,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=811, Invalid=2269, Unknown=0, NotChecked=0, Total=3080 [2023-11-12 02:08:42,440 INFO L87 Difference]: Start difference. First operand 95 states and 100 transitions. Second operand has 56 states, 55 states have (on average 2.727272727272727) internal successors, (150), 56 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:43,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:43,351 INFO L93 Difference]: Finished difference Result 166 states and 184 transitions. [2023-11-12 02:08:43,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-11-12 02:08:43,352 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 2.727272727272727) internal successors, (150), 56 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-11-12 02:08:43,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:43,353 INFO L225 Difference]: With dead ends: 166 [2023-11-12 02:08:43,354 INFO L226 Difference]: Without dead ends: 165 [2023-11-12 02:08:43,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1892, Invalid=4750, Unknown=0, NotChecked=0, Total=6642 [2023-11-12 02:08:43,358 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 196 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:43,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 143 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:08:43,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-12 02:08:43,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2023-11-12 02:08:43,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 1.0365853658536586) internal successors, (170), 164 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:43,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 170 transitions. [2023-11-12 02:08:43,370 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 170 transitions. Word has length 94 [2023-11-12 02:08:43,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:43,371 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 170 transitions. [2023-11-12 02:08:43,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 2.727272727272727) internal successors, (150), 56 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:43,371 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 170 transitions. [2023-11-12 02:08:43,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-12 02:08:43,373 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:43,373 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 26, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:43,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:08:43,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:43,581 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:43,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:43,582 INFO L85 PathProgramCache]: Analyzing trace with hash 431084331, now seen corresponding path program 6 times [2023-11-12 02:08:43,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:43,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734185952] [2023-11-12 02:08:43,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:43,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:46,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1785 backedges. 0 proven. 1755 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:08:46,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:46,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734185952] [2023-11-12 02:08:46,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734185952] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:08:46,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414293723] [2023-11-12 02:08:46,291 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-12 02:08:46,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:08:46,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:46,292 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:08:46,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 02:08:46,607 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2023-11-12 02:08:46,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:08:46,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 69 conjunts are in the unsatisfiable core [2023-11-12 02:08:46,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:08:46,626 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-12 02:08:46,789 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-12 02:08:46,790 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-12 02:08:46,803 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 02:08:46,905 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-12 02:08:47,083 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-12 02:08:47,184 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-12 02:08:47,329 INFO L322 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-12 02:08:47,330 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2023-11-12 02:08:47,434 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-12 02:08:47,434 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2023-11-12 02:08:47,752 INFO L322 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size [2023-11-12 02:08:47,753 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 42 [2023-11-12 02:08:47,951 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:08:47,951 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 46 [2023-11-12 02:08:48,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1785 backedges. 52 proven. 30 refuted. 0 times theorem prover too weak. 1703 trivial. 0 not checked. [2023-11-12 02:08:48,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:08:48,147 WARN L854 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~p~0#1.base| Int) (v_ArrVal_680 (Array Int Int))) (or (not (= (select (select (store |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base| v_ArrVal_680) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (not (= v_ArrVal_680 (let ((.cse0 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (store (store (select |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |c_ULTIMATE.start_main_~p~0#1.offset| |c_ULTIMATE.start_main_~i~0#1|) .cse0 (select v_ArrVal_680 .cse0))))))) is different from false [2023-11-12 02:08:48,203 WARN L854 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~p~0#1.base| Int) (v_ArrVal_680 (Array Int Int))) (let ((.cse0 (select v_ArrVal_680 |c_ULTIMATE.start_main_~p~0#1.offset|))) (or (< .cse0 (+ |c_ULTIMATE.start_main_#t~post8#1| 1)) (not (= v_ArrVal_680 (let ((.cse1 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (store (store (select |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |c_ULTIMATE.start_main_~p~0#1.offset| .cse0) .cse1 (select v_ArrVal_680 .cse1))))) (not (= (select (select (store |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base| v_ArrVal_680) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) is different from false [2023-11-12 02:08:48,243 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_678 (Array Int Int)) (|v_ULTIMATE.start_main_~p~0#1.base_109| Int) (v_ArrVal_680 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_678)) (.cse0 (select v_ArrVal_680 |c_ULTIMATE.start_main_~t~0#1.offset|))) (or (< .cse0 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (not (= (select (select (store .cse1 |v_ULTIMATE.start_main_~p~0#1.base_109| v_ArrVal_680) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (not (= v_ArrVal_680 (let ((.cse2 (+ |c_ULTIMATE.start_main_~t~0#1.offset| 4))) (store (store (select .cse1 |v_ULTIMATE.start_main_~p~0#1.base_109|) |c_ULTIMATE.start_main_~t~0#1.offset| .cse0) .cse2 (select v_ArrVal_680 .cse2))))) (not (= v_ArrVal_678 (let ((.cse3 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) .cse3 (select v_ArrVal_678 .cse3)))))))) is different from false [2023-11-12 02:08:48,293 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_678 (Array Int Int)) (|v_ULTIMATE.start_main_~p~0#1.base_109| Int) (|ULTIMATE.start_main_~p~0#1.base| Int) (v_ArrVal_680 (Array Int Int))) (let ((.cse1 (select v_ArrVal_680 0)) (.cse2 (store |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base| v_ArrVal_678))) (or (not (= v_ArrVal_678 (let ((.cse0 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (store (store (select |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |c_ULTIMATE.start_main_~p~0#1.offset| |c_ULTIMATE.start_main_~i~0#1|) .cse0 (select v_ArrVal_678 .cse0))))) (< .cse1 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (not (= v_ArrVal_680 (store (store (select .cse2 |v_ULTIMATE.start_main_~p~0#1.base_109|) 0 .cse1) 4 (select v_ArrVal_680 4)))) (not (= (select (select (store .cse2 |v_ULTIMATE.start_main_~p~0#1.base_109| v_ArrVal_680) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) is different from false [2023-11-12 02:08:48,402 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_678 (Array Int Int)) (|v_ULTIMATE.start_main_~p~0#1.base_109| Int) (|ULTIMATE.start_main_~p~0#1.base| Int) (v_ArrVal_680 (Array Int Int))) (let ((.cse1 (select v_ArrVal_680 0)) (.cse0 (store |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base| v_ArrVal_678))) (or (not (= v_ArrVal_680 (store (store (select .cse0 |v_ULTIMATE.start_main_~p~0#1.base_109|) 0 .cse1) 4 (select v_ArrVal_680 4)))) (< .cse1 (+ |c_ULTIMATE.start_main_#t~post8#1| 2)) (not (= v_ArrVal_678 (let ((.cse2 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (store (store (select |c_#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |c_ULTIMATE.start_main_~p~0#1.offset| (+ |c_ULTIMATE.start_main_#t~post8#1| 1)) .cse2 (select v_ArrVal_678 .cse2))))) (not (= (select (select (store .cse0 |v_ULTIMATE.start_main_~p~0#1.base_109| v_ArrVal_680) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) is different from false [2023-11-12 02:08:48,459 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_678 (Array Int Int)) (|v_ULTIMATE.start_main_~p~0#1.base_109| Int) (|v_ULTIMATE.start_main_~p~0#1.base_110| Int) (v_ArrVal_680 (Array Int Int)) (v_ArrVal_674 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_674))) (let ((.cse2 (store .cse0 |v_ULTIMATE.start_main_~p~0#1.base_110| v_ArrVal_678)) (.cse3 (select v_ArrVal_680 0))) (or (not (= v_ArrVal_678 (let ((.cse1 (+ |c_ULTIMATE.start_main_~t~0#1.offset| 4))) (store (store (select .cse0 |v_ULTIMATE.start_main_~p~0#1.base_110|) |c_ULTIMATE.start_main_~t~0#1.offset| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) .cse1 (select v_ArrVal_678 .cse1))))) (not (= (select (select (store .cse2 |v_ULTIMATE.start_main_~p~0#1.base_109| v_ArrVal_680) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (< .cse3 (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (not (= v_ArrVal_680 (store (store (select .cse2 |v_ULTIMATE.start_main_~p~0#1.base_109|) 0 .cse3) 4 (select v_ArrVal_680 4)))))))) is different from false [2023-11-12 02:08:48,515 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_678 (Array Int Int)) (|v_ULTIMATE.start_main_~p~0#1.base_109| Int) (|v_ULTIMATE.start_main_~p~0#1.base_110| Int) (v_ArrVal_680 (Array Int Int)) (v_ArrVal_674 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_674))) (let ((.cse0 (store .cse2 |v_ULTIMATE.start_main_~p~0#1.base_110| v_ArrVal_678)) (.cse1 (select v_ArrVal_680 0))) (or (not (= (select (select (store .cse0 |v_ULTIMATE.start_main_~p~0#1.base_109| v_ArrVal_680) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (< .cse1 (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (not (= v_ArrVal_678 (store (store (select .cse2 |v_ULTIMATE.start_main_~p~0#1.base_110|) 0 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) 4 (select v_ArrVal_678 4)))) (not (= v_ArrVal_680 (store (store (select .cse0 |v_ULTIMATE.start_main_~p~0#1.base_109|) 0 .cse1) 4 (select v_ArrVal_680 4)))))))) is different from false [2023-11-12 02:08:48,585 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_678 (Array Int Int)) (|v_ULTIMATE.start_main_~p~0#1.base_109| Int) (|v_ULTIMATE.start_main_~p~0#1.base_110| Int) (v_ArrVal_680 (Array Int Int)) (v_ArrVal_674 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_674))) (let ((.cse2 (store .cse0 |v_ULTIMATE.start_main_~p~0#1.base_110| v_ArrVal_678)) (.cse1 (select v_ArrVal_680 0))) (or (not (= v_ArrVal_678 (store (store (select .cse0 |v_ULTIMATE.start_main_~p~0#1.base_110|) 0 (+ |c_ULTIMATE.start_main_#t~post8#1| 2)) 4 (select v_ArrVal_678 4)))) (< .cse1 (+ |c_ULTIMATE.start_main_#t~post8#1| 3)) (not (= (select (select (store .cse2 |v_ULTIMATE.start_main_~p~0#1.base_109| v_ArrVal_680) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (not (= v_ArrVal_680 (store (store (select .cse2 |v_ULTIMATE.start_main_~p~0#1.base_109|) 0 .cse1) 4 (select v_ArrVal_680 4)))))))) is different from false [2023-11-12 02:08:48,647 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_678 (Array Int Int)) (|v_ULTIMATE.start_main_~p~0#1.base_109| Int) (|v_ULTIMATE.start_main_~p~0#1.base_110| Int) (v_ArrVal_680 (Array Int Int)) (v_ArrVal_671 (Array Int Int)) (v_ArrVal_674 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_671) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_674))) (let ((.cse1 (store .cse3 |v_ULTIMATE.start_main_~p~0#1.base_110| v_ArrVal_678)) (.cse0 (select v_ArrVal_680 0))) (or (< .cse0 (+ 3 |c_ULTIMATE.start_main_~i~0#1|)) (not (= (select (select (store .cse1 |v_ULTIMATE.start_main_~p~0#1.base_109| v_ArrVal_680) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (not (= (store (store (select .cse1 |v_ULTIMATE.start_main_~p~0#1.base_109|) 0 .cse0) 4 (select v_ArrVal_680 4)) v_ArrVal_680)) (not (= v_ArrVal_671 (let ((.cse2 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|) .cse2 (select v_ArrVal_671 .cse2))))) (not (= v_ArrVal_678 (store (store (select .cse3 |v_ULTIMATE.start_main_~p~0#1.base_110|) 0 (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) 4 (select v_ArrVal_678 4)))))))) is different from false [2023-11-12 02:08:48,748 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:08:48,749 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2443 treesize of output 2467 [2023-11-12 02:08:48,856 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:08:48,915 INFO L322 Elim1Store]: treesize reduction 71, result has 40.3 percent of original size [2023-11-12 02:08:48,916 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 539 treesize of output 556 [2023-11-12 02:08:49,784 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-12 02:08:50,426 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 1 [2023-11-12 02:08:50,845 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:08:50,878 INFO L322 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2023-11-12 02:08:50,878 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 89 treesize of output 99 [2023-11-12 02:08:50,935 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-12 02:08:51,233 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:08:51,234 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 8 [2023-11-12 02:08:51,502 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:08:51,503 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 8 [2023-11-12 02:08:52,438 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 6 [2023-11-12 02:08:52,558 INFO L322 Elim1Store]: treesize reduction 28, result has 46.2 percent of original size [2023-11-12 02:08:52,558 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 244 treesize of output 237 [2023-11-12 02:08:52,887 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2023-11-12 02:08:54,238 INFO L322 Elim1Store]: treesize reduction 28, result has 46.2 percent of original size [2023-11-12 02:08:54,239 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 78 [2023-11-12 02:08:54,404 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2023-11-12 02:08:54,698 INFO L322 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2023-11-12 02:08:54,698 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 127 treesize of output 1 [2023-11-12 02:08:54,785 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 6 [2023-11-12 02:08:54,843 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 6 [2023-11-12 02:08:54,909 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 6 [2023-11-12 02:08:55,998 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 6 [2023-11-12 02:08:56,137 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,154 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,183 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,206 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,282 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,303 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,328 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,379 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:08:56,380 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2023-11-12 02:08:56,411 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,438 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,479 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,492 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,532 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,573 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,591 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-12 02:08:56,660 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7594 treesize of output 7530 [2023-11-12 02:08:56,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:08:56,882 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 114 [2023-11-12 02:08:56,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:08:56,984 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:08:57,079 INFO L322 Elim1Store]: treesize reduction 149, result has 31.7 percent of original size [2023-11-12 02:08:57,080 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 126 [2023-11-12 02:08:57,250 INFO L322 Elim1Store]: treesize reduction 18, result has 73.9 percent of original size [2023-11-12 02:08:57,251 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 81 treesize of output 119 [2023-11-12 02:08:57,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:08:57,483 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-12 02:08:57,498 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:08:57,501 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:08:57,509 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:08:57,532 INFO L322 Elim1Store]: treesize reduction 47, result has 7.8 percent of original size [2023-11-12 02:08:57,533 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 4 [2023-11-12 02:08:57,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:08:57,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:08:57,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:08:57,578 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:08:57,578 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:08:57,581 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-11-12 02:08:57,595 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:08:57,596 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 88 [2023-11-12 02:08:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1785 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1703 trivial. 30 not checked. [2023-11-12 02:08:58,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414293723] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:08:58,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:08:58,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 15, 15] total 82 [2023-11-12 02:08:58,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088401522] [2023-11-12 02:08:58,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:08:58,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2023-11-12 02:08:58,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:58,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2023-11-12 02:08:58,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1029, Invalid=4254, Unknown=9, NotChecked=1350, Total=6642 [2023-11-12 02:08:58,043 INFO L87 Difference]: Start difference. First operand 165 states and 170 transitions. Second operand has 82 states, 82 states have (on average 2.6097560975609757) internal successors, (214), 82 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:00,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:09:03,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:09:06,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:06,966 INFO L93 Difference]: Finished difference Result 316 states and 324 transitions. [2023-11-12 02:09:06,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-11-12 02:09:06,967 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 2.6097560975609757) internal successors, (214), 82 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2023-11-12 02:09:06,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:06,970 INFO L225 Difference]: With dead ends: 316 [2023-11-12 02:09:06,971 INFO L226 Difference]: Without dead ends: 179 [2023-11-12 02:09:06,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 303 SyntacticMatches, 1 SemanticMatches, 145 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 4640 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=4023, Invalid=14910, Unknown=9, NotChecked=2520, Total=21462 [2023-11-12 02:09:06,986 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 557 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 2354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 1670 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:06,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 285 Invalid, 2354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 666 Invalid, 2 Unknown, 1670 Unchecked, 4.7s Time] [2023-11-12 02:09:06,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-12 02:09:06,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2023-11-12 02:09:06,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 1.0397727272727273) internal successors, (183), 176 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:06,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 183 transitions. [2023-11-12 02:09:06,998 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 183 transitions. Word has length 164 [2023-11-12 02:09:06,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:06,999 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 183 transitions. [2023-11-12 02:09:06,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 2.6097560975609757) internal successors, (214), 82 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:06,999 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 183 transitions. [2023-11-12 02:09:07,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-12 02:09:07,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:07,003 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 27, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:07,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:09:07,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:07,204 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:09:07,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:07,205 INFO L85 PathProgramCache]: Analyzing trace with hash -2069812039, now seen corresponding path program 7 times [2023-11-12 02:09:07,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:07,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942619563] [2023-11-12 02:09:07,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:07,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:09,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1944 backedges. 0 proven. 1890 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-12 02:09:09,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:09,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942619563] [2023-11-12 02:09:09,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942619563] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:09:09,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314452933] [2023-11-12 02:09:09,884 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-12 02:09:09,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:09,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:09,885 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:09:09,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4ee660-9d28-44ef-b7e0-977193f8d793/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 02:09:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:10,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-12 02:09:10,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:09:10,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1944 backedges. 0 proven. 1890 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-12 02:09:10,381 INFO L327 TraceCheckSpWp]: Computing backward predicates...