./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e9492584c051c945baa3a1de8b03a2c00614fb076a66c88b26b81461b005eeb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:35:48,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:35:48,983 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 12:35:48,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:35:48,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:35:49,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:35:49,026 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:35:49,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:35:49,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:35:49,034 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:35:49,034 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:35:49,035 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:35:49,035 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:35:49,035 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:35:49,036 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:35:49,036 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:35:49,036 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:35:49,037 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:35:49,039 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:35:49,039 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:35:49,039 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:35:49,041 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:35:49,042 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:35:49,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:35:49,042 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:35:49,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:35:49,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:35:49,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:35:49,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:35:49,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:35:49,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:35:49,056 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:35:49,057 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:35:49,057 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:35:49,058 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:35:49,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:35:49,058 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:35:49,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:35:49,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:35:49,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:35:49,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:35:49,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:35:49,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:35:49,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:35:49,062 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:35:49,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:35:49,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:35:49,064 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:35:49,064 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:35:49,064 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e9492584c051c945baa3a1de8b03a2c00614fb076a66c88b26b81461b005eeb [2024-11-02 12:35:49,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:35:49,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:35:49,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:35:49,448 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:35:49,449 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:35:49,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c Unable to find full path for "g++" [2024-11-02 12:35:51,518 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:35:51,741 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:35:51,741 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound1.c [2024-11-02 12:35:51,753 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/data/3143e7b04/8c088c03da39428e9ef9dcd2e84e16ba/FLAGd195e8235 [2024-11-02 12:35:51,777 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/data/3143e7b04/8c088c03da39428e9ef9dcd2e84e16ba [2024-11-02 12:35:51,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:35:51,783 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:35:51,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:35:51,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:35:51,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:35:51,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:35:51" (1/1) ... [2024-11-02 12:35:51,797 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac386f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:51, skipping insertion in model container [2024-11-02 12:35:51,799 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:35:51" (1/1) ... [2024-11-02 12:35:51,828 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:35:52,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:52,116 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:35:52,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:52,177 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:35:52,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:52 WrapperNode [2024-11-02 12:35:52,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:35:52,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:52,179 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:35:52,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:35:52,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:52" (1/1) ... [2024-11-02 12:35:52,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:52" (1/1) ... [2024-11-02 12:35:52,230 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 110 [2024-11-02 12:35:52,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:52,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:35:52,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:35:52,232 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:35:52,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:52" (1/1) ... [2024-11-02 12:35:52,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:52" (1/1) ... [2024-11-02 12:35:52,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:52" (1/1) ... [2024-11-02 12:35:52,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:52" (1/1) ... [2024-11-02 12:35:52,254 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:52" (1/1) ... [2024-11-02 12:35:52,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:52" (1/1) ... [2024-11-02 12:35:52,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:52" (1/1) ... [2024-11-02 12:35:52,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:52" (1/1) ... [2024-11-02 12:35:52,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:35:52,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:35:52,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:35:52,265 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:35:52,266 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:52" (1/1) ... [2024-11-02 12:35:52,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:35:52,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:52,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:35:52,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:35:52,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:35:52,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:35:52,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:35:52,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:35:52,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-02 12:35:52,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-02 12:35:52,455 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:35:52,458 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:35:53,307 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-02 12:35:53,307 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:35:53,408 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:35:53,408 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:35:53,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:53 BoogieIcfgContainer [2024-11-02 12:35:53,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:35:53,416 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:35:53,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:35:53,424 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:35:53,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:35:51" (1/3) ... [2024-11-02 12:35:53,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd09361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:53, skipping insertion in model container [2024-11-02 12:35:53,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:52" (2/3) ... [2024-11-02 12:35:53,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd09361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:53, skipping insertion in model container [2024-11-02 12:35:53,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:53" (3/3) ... [2024-11-02 12:35:53,428 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_unwindbound1.c [2024-11-02 12:35:53,451 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:35:53,451 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2024-11-02 12:35:53,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:35:53,552 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@11124619, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:35:53,552 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-02 12:35:53,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 97 states have internal predecessors, (103), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:35:53,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-02 12:35:53,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:53,566 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-02 12:35:53,567 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:35:53,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:53,575 INFO L85 PathProgramCache]: Analyzing trace with hash 191333, now seen corresponding path program 1 times [2024-11-02 12:35:53,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:53,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403140238] [2024-11-02 12:35:53,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:53,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:53,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:53,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:53,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403140238] [2024-11-02 12:35:53,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403140238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:53,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:53,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:35:53,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638252803] [2024-11-02 12:35:53,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:53,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:35:53,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:53,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:35:53,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:35:53,802 INFO L87 Difference]: Start difference. First operand has 102 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 97 states have internal predecessors, (103), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-02 12:35:53,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:53,844 INFO L93 Difference]: Finished difference Result 116 states and 123 transitions. [2024-11-02 12:35:53,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:35:53,848 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2024-11-02 12:35:53,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:53,857 INFO L225 Difference]: With dead ends: 116 [2024-11-02 12:35:53,858 INFO L226 Difference]: Without dead ends: 99 [2024-11-02 12:35:53,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:35:53,867 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:53,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:35:53,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-02 12:35:53,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-02 12:35:53,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 52 states have (on average 1.9230769230769231) internal successors, (100), 95 states have internal predecessors, (100), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-02 12:35:53,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 104 transitions. [2024-11-02 12:35:53,924 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 104 transitions. Word has length 3 [2024-11-02 12:35:53,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:53,926 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 104 transitions. [2024-11-02 12:35:53,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-02 12:35:53,927 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 104 transitions. [2024-11-02 12:35:53,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-02 12:35:53,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:53,929 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-02 12:35:53,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:35:53,930 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:35:53,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:53,931 INFO L85 PathProgramCache]: Analyzing trace with hash 187844, now seen corresponding path program 1 times [2024-11-02 12:35:53,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:53,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917438155] [2024-11-02 12:35:53,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:53,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:54,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:54,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:54,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917438155] [2024-11-02 12:35:54,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917438155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:54,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:54,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:35:54,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974840641] [2024-11-02 12:35:54,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:54,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:54,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:54,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:54,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:54,023 INFO L87 Difference]: Start difference. First operand 99 states and 104 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-02 12:35:54,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:54,088 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2024-11-02 12:35:54,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:35:54,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-02 12:35:54,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:54,090 INFO L225 Difference]: With dead ends: 99 [2024-11-02 12:35:54,091 INFO L226 Difference]: Without dead ends: 98 [2024-11-02 12:35:54,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:35:54,093 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 103 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:54,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 190 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:35:54,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-02 12:35:54,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-02 12:35:54,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 52 states have (on average 1.9038461538461537) internal successors, (99), 94 states have internal predecessors, (99), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-02 12:35:54,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 103 transitions. [2024-11-02 12:35:54,112 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 103 transitions. Word has length 3 [2024-11-02 12:35:54,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:54,112 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 103 transitions. [2024-11-02 12:35:54,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-02 12:35:54,113 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 103 transitions. [2024-11-02 12:35:54,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 12:35:54,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:54,115 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 12:35:54,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:35:54,115 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:35:54,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:54,116 INFO L85 PathProgramCache]: Analyzing trace with hash 5823212, now seen corresponding path program 1 times [2024-11-02 12:35:54,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:54,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536686700] [2024-11-02 12:35:54,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:54,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:54,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:54,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:54,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536686700] [2024-11-02 12:35:54,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536686700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:54,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:54,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:35:54,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503397457] [2024-11-02 12:35:54,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:54,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:54,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:54,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:54,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:54,227 INFO L87 Difference]: Start difference. First operand 98 states and 103 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-02 12:35:54,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:54,288 INFO L93 Difference]: Finished difference Result 114 states and 119 transitions. [2024-11-02 12:35:54,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:35:54,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-11-02 12:35:54,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:54,290 INFO L225 Difference]: With dead ends: 114 [2024-11-02 12:35:54,291 INFO L226 Difference]: Without dead ends: 102 [2024-11-02 12:35:54,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:35:54,293 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 3 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:54,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 290 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:35:54,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-02 12:35:54,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-02 12:35:54,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 56 states have (on average 1.8392857142857142) internal successors, (103), 98 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-02 12:35:54,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2024-11-02 12:35:54,304 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 4 [2024-11-02 12:35:54,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:54,305 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2024-11-02 12:35:54,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-02 12:35:54,306 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2024-11-02 12:35:54,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-02 12:35:54,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:54,306 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-02 12:35:54,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:35:54,307 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:35:54,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:54,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1301141134, now seen corresponding path program 1 times [2024-11-02 12:35:54,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:54,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971421087] [2024-11-02 12:35:54,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:54,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:54,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [657887508] [2024-11-02 12:35:54,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:54,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:54,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:54,333 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:54,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:35:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:54,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-02 12:35:54,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:54,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:54,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:54,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:54,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971421087] [2024-11-02 12:35:54,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:54,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657887508] [2024-11-02 12:35:54,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657887508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:54,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:54,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:35:54,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691594983] [2024-11-02 12:35:54,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:54,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:54,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:54,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:54,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:54,513 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:54,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:54,911 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions. [2024-11-02 12:35:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:54,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-02 12:35:54,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:54,913 INFO L225 Difference]: With dead ends: 143 [2024-11-02 12:35:54,916 INFO L226 Difference]: Without dead ends: 134 [2024-11-02 12:35:54,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:54,918 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 28 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:54,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 92 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 12:35:54,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-02 12:35:54,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 127. [2024-11-02 12:35:54,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 79 states have (on average 1.7721518987341771) internal successors, (140), 121 states have internal predecessors, (140), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-02 12:35:54,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 148 transitions. [2024-11-02 12:35:54,945 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 148 transitions. Word has length 6 [2024-11-02 12:35:54,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:54,946 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 148 transitions. [2024-11-02 12:35:54,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:35:54,948 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 148 transitions. [2024-11-02 12:35:54,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 12:35:54,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:54,949 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:54,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 12:35:55,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:55,154 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:35:55,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:55,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1680669547, now seen corresponding path program 1 times [2024-11-02 12:35:55,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:55,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517597305] [2024-11-02 12:35:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:55,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:55,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429510246] [2024-11-02 12:35:55,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:55,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:55,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:55,188 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:55,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 12:35:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:55,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-02 12:35:55,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:55,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:55,336 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:55,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:55,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517597305] [2024-11-02 12:35:55,337 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:55,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429510246] [2024-11-02 12:35:55,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429510246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:55,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:55,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:35:55,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626397974] [2024-11-02 12:35:55,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:55,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:55,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:55,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:55,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:55,340 INFO L87 Difference]: Start difference. First operand 127 states and 148 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-02 12:35:55,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:55,616 INFO L93 Difference]: Finished difference Result 181 states and 221 transitions. [2024-11-02 12:35:55,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:55,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-11-02 12:35:55,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:55,619 INFO L225 Difference]: With dead ends: 181 [2024-11-02 12:35:55,619 INFO L226 Difference]: Without dead ends: 167 [2024-11-02 12:35:55,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:55,621 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 34 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:55,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 85 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:35:55,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-02 12:35:55,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 157. [2024-11-02 12:35:55,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 108 states have (on average 1.7407407407407407) internal successors, (188), 150 states have internal predecessors, (188), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-02 12:35:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 198 transitions. [2024-11-02 12:35:55,641 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 198 transitions. Word has length 7 [2024-11-02 12:35:55,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:55,642 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 198 transitions. [2024-11-02 12:35:55,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-02 12:35:55,642 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 198 transitions. [2024-11-02 12:35:55,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-02 12:35:55,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:55,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:55,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 12:35:55,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:55,845 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:35:55,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:55,846 INFO L85 PathProgramCache]: Analyzing trace with hash 561148464, now seen corresponding path program 1 times [2024-11-02 12:35:55,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:55,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120702577] [2024-11-02 12:35:55,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:55,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:55,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [5302508] [2024-11-02 12:35:55,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:55,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:55,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:55,862 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:55,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 12:35:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:55,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-02 12:35:55,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:56,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:56,018 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:56,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:56,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120702577] [2024-11-02 12:35:56,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:56,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5302508] [2024-11-02 12:35:56,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5302508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:56,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:56,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:35:56,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134370022] [2024-11-02 12:35:56,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:56,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:56,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:56,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:56,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:56,021 INFO L87 Difference]: Start difference. First operand 157 states and 198 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-02 12:35:56,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:56,285 INFO L93 Difference]: Finished difference Result 169 states and 205 transitions. [2024-11-02 12:35:56,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:56,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2024-11-02 12:35:56,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:56,287 INFO L225 Difference]: With dead ends: 169 [2024-11-02 12:35:56,287 INFO L226 Difference]: Without dead ends: 168 [2024-11-02 12:35:56,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:56,289 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 24 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:56,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 92 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:35:56,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-02 12:35:56,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 157. [2024-11-02 12:35:56,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 150 states have internal predecessors, (187), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-02 12:35:56,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 197 transitions. [2024-11-02 12:35:56,301 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 197 transitions. Word has length 8 [2024-11-02 12:35:56,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:56,302 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 197 transitions. [2024-11-02 12:35:56,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-02 12:35:56,302 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 197 transitions. [2024-11-02 12:35:56,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-02 12:35:56,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:56,303 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:56,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 12:35:56,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:56,508 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:35:56,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:56,508 INFO L85 PathProgramCache]: Analyzing trace with hash 215733261, now seen corresponding path program 1 times [2024-11-02 12:35:56,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:56,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015480095] [2024-11-02 12:35:56,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:56,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:35:56,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411195907] [2024-11-02 12:35:56,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:56,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:56,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:56,534 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:35:56,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 12:35:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:56,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-02 12:35:56,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:35:56,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:56,742 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:35:56,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:56,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015480095] [2024-11-02 12:35:56,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:35:56,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411195907] [2024-11-02 12:35:56,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411195907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:56,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:56,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:35:56,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609485316] [2024-11-02 12:35:56,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:56,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:56,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:56,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:56,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:56,747 INFO L87 Difference]: Start difference. First operand 157 states and 197 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-02 12:35:57,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:57,275 INFO L93 Difference]: Finished difference Result 165 states and 197 transitions. [2024-11-02 12:35:57,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:57,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2024-11-02 12:35:57,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:57,277 INFO L225 Difference]: With dead ends: 165 [2024-11-02 12:35:57,277 INFO L226 Difference]: Without dead ends: 162 [2024-11-02 12:35:57,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:57,279 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 31 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:57,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 89 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 12:35:57,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-02 12:35:57,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 157. [2024-11-02 12:35:57,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 108 states have (on average 1.6944444444444444) internal successors, (183), 150 states have internal predecessors, (183), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-02 12:35:57,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 193 transitions. [2024-11-02 12:35:57,303 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 193 transitions. Word has length 9 [2024-11-02 12:35:57,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:57,304 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 193 transitions. [2024-11-02 12:35:57,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-02 12:35:57,304 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 193 transitions. [2024-11-02 12:35:57,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-02 12:35:57,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:57,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:57,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-02 12:35:57,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:35:57,506 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:35:57,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:57,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1902203438, now seen corresponding path program 1 times [2024-11-02 12:35:57,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:57,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295465599] [2024-11-02 12:35:57,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:57,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:57,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:35:57,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:57,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295465599] [2024-11-02 12:35:57,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295465599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:57,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:57,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:35:57,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112961252] [2024-11-02 12:35:57,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:57,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:35:57,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:57,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:35:57,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:57,621 INFO L87 Difference]: Start difference. First operand 157 states and 193 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-11-02 12:35:59,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:59,646 INFO L93 Difference]: Finished difference Result 265 states and 318 transitions. [2024-11-02 12:35:59,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:35:59,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2024-11-02 12:35:59,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:59,648 INFO L225 Difference]: With dead ends: 265 [2024-11-02 12:35:59,648 INFO L226 Difference]: Without dead ends: 264 [2024-11-02 12:35:59,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:35:59,649 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 87 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:59,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 159 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-02 12:35:59,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-02 12:35:59,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 181. [2024-11-02 12:35:59,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 131 states have (on average 1.6946564885496183) internal successors, (222), 173 states have internal predecessors, (222), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-02 12:35:59,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 234 transitions. [2024-11-02 12:35:59,671 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 234 transitions. Word has length 10 [2024-11-02 12:35:59,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:59,672 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 234 transitions. [2024-11-02 12:35:59,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-11-02 12:35:59,672 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 234 transitions. [2024-11-02 12:35:59,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-02 12:35:59,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:59,673 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:35:59,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-02 12:35:59,673 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:35:59,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:59,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1161235631, now seen corresponding path program 1 times [2024-11-02 12:35:59,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:59,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123060524] [2024-11-02 12:35:59,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:59,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:00,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:00,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123060524] [2024-11-02 12:36:00,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123060524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:00,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:00,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:36:00,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023542469] [2024-11-02 12:36:00,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:00,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:36:00,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:00,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:36:00,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:00,032 INFO L87 Difference]: Start difference. First operand 181 states and 234 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-02 12:36:03,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:03,489 INFO L93 Difference]: Finished difference Result 265 states and 316 transitions. [2024-11-02 12:36:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:36:03,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2024-11-02 12:36:03,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:03,493 INFO L225 Difference]: With dead ends: 265 [2024-11-02 12:36:03,493 INFO L226 Difference]: Without dead ends: 264 [2024-11-02 12:36:03,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:03,495 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 87 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:03,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 158 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-02 12:36:03,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-02 12:36:03,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 181. [2024-11-02 12:36:03,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 131 states have (on average 1.6793893129770991) internal successors, (220), 173 states have internal predecessors, (220), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-02 12:36:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 232 transitions. [2024-11-02 12:36:03,509 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 232 transitions. Word has length 11 [2024-11-02 12:36:03,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:03,509 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 232 transitions. [2024-11-02 12:36:03,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-02 12:36:03,509 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 232 transitions. [2024-11-02 12:36:03,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-02 12:36:03,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:03,510 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:03,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-02 12:36:03,511 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:36:03,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:03,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1638566260, now seen corresponding path program 1 times [2024-11-02 12:36:03,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:03,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910821459] [2024-11-02 12:36:03,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:03,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:36:03,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [866075771] [2024-11-02 12:36:03,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:03,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:03,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:03,526 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:36:03,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 12:36:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:03,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:36:03,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:36:03,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:03,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:36:03,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:03,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910821459] [2024-11-02 12:36:03,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:36:03,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866075771] [2024-11-02 12:36:03,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866075771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:03,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:03,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:36:03,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502581400] [2024-11-02 12:36:03,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:03,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:36:03,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:03,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:36:03,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:03,794 INFO L87 Difference]: Start difference. First operand 181 states and 232 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2024-11-02 12:36:03,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:03,820 INFO L93 Difference]: Finished difference Result 181 states and 232 transitions. [2024-11-02 12:36:03,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:36:03,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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 [2024-11-02 12:36:03,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:03,822 INFO L225 Difference]: With dead ends: 181 [2024-11-02 12:36:03,822 INFO L226 Difference]: Without dead ends: 179 [2024-11-02 12:36:03,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:03,823 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 83 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:03,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 95 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:36:03,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-02 12:36:03,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-02 12:36:03,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 131 states have (on average 1.6259541984732824) internal successors, (213), 171 states have internal predecessors, (213), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-02 12:36:03,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 225 transitions. [2024-11-02 12:36:03,836 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 225 transitions. Word has length 12 [2024-11-02 12:36:03,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:03,836 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 225 transitions. [2024-11-02 12:36:03,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2024-11-02 12:36:03,837 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 225 transitions. [2024-11-02 12:36:03,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-02 12:36:03,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:03,838 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:03,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-02 12:36:04,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:04,043 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:36:04,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:04,043 INFO L85 PathProgramCache]: Analyzing trace with hash -744053423, now seen corresponding path program 1 times [2024-11-02 12:36:04,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:04,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038583130] [2024-11-02 12:36:04,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:04,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:36:04,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1566855638] [2024-11-02 12:36:04,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:04,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:04,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:04,076 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:36:04,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-02 12:36:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:04,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:36:04,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:36:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:04,265 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:36:04,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:04,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038583130] [2024-11-02 12:36:04,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:36:04,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566855638] [2024-11-02 12:36:04,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566855638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:04,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:04,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:36:04,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072684585] [2024-11-02 12:36:04,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:04,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:36:04,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:04,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:36:04,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:04,268 INFO L87 Difference]: Start difference. First operand 179 states and 225 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-02 12:36:04,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:04,294 INFO L93 Difference]: Finished difference Result 179 states and 225 transitions. [2024-11-02 12:36:04,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:36:04,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2024-11-02 12:36:04,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:04,296 INFO L225 Difference]: With dead ends: 179 [2024-11-02 12:36:04,297 INFO L226 Difference]: Without dead ends: 175 [2024-11-02 12:36:04,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:04,298 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 82 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:04,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 95 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:36:04,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-02 12:36:04,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-02 12:36:04,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 129 states have (on average 1.5813953488372092) internal successors, (204), 167 states have internal predecessors, (204), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-02 12:36:04,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 216 transitions. [2024-11-02 12:36:04,313 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 216 transitions. Word has length 13 [2024-11-02 12:36:04,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:04,314 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 216 transitions. [2024-11-02 12:36:04,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-02 12:36:04,314 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 216 transitions. [2024-11-02 12:36:04,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-02 12:36:04,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:04,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:04,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-02 12:36:04,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:04,520 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:36:04,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:04,521 INFO L85 PathProgramCache]: Analyzing trace with hash 864060060, now seen corresponding path program 1 times [2024-11-02 12:36:04,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:04,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975229463] [2024-11-02 12:36:04,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:04,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:04,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:04,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:04,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975229463] [2024-11-02 12:36:04,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975229463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:04,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:04,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:36:04,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902287335] [2024-11-02 12:36:04,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:04,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:36:04,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:04,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:36:04,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:04,745 INFO L87 Difference]: Start difference. First operand 175 states and 216 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:04,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:04,942 INFO L93 Difference]: Finished difference Result 252 states and 317 transitions. [2024-11-02 12:36:04,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:36:04,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-02 12:36:04,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:04,944 INFO L225 Difference]: With dead ends: 252 [2024-11-02 12:36:04,945 INFO L226 Difference]: Without dead ends: 250 [2024-11-02 12:36:04,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:04,946 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 56 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:04,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 138 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:36:04,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-02 12:36:04,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 224. [2024-11-02 12:36:04,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 177 states have (on average 1.6497175141242937) internal successors, (292), 215 states have internal predecessors, (292), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-02 12:36:04,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 306 transitions. [2024-11-02 12:36:04,961 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 306 transitions. Word has length 23 [2024-11-02 12:36:04,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:04,962 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 306 transitions. [2024-11-02 12:36:04,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:04,962 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 306 transitions. [2024-11-02 12:36:04,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-02 12:36:04,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:04,963 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:04,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-02 12:36:04,963 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:36:04,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:04,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1292573803, now seen corresponding path program 1 times [2024-11-02 12:36:04,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:04,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398755717] [2024-11-02 12:36:04,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:04,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:36:05,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1031147657] [2024-11-02 12:36:05,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:05,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:05,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:05,004 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:36:05,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-02 12:36:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:05,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:36:05,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:36:05,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:05,242 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:36:05,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:05,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398755717] [2024-11-02 12:36:05,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:36:05,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031147657] [2024-11-02 12:36:05,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031147657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:05,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:05,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:36:05,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026081872] [2024-11-02 12:36:05,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:05,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:36:05,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:05,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:36:05,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:05,245 INFO L87 Difference]: Start difference. First operand 224 states and 306 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:05,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:05,722 INFO L93 Difference]: Finished difference Result 275 states and 377 transitions. [2024-11-02 12:36:05,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:36:05,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-02 12:36:05,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:05,725 INFO L225 Difference]: With dead ends: 275 [2024-11-02 12:36:05,725 INFO L226 Difference]: Without dead ends: 271 [2024-11-02 12:36:05,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:05,728 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 23 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:05,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 106 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 12:36:05,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-02 12:36:05,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 252. [2024-11-02 12:36:05,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 204 states have (on average 1.6470588235294117) internal successors, (336), 242 states have internal predecessors, (336), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 12:36:05,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 352 transitions. [2024-11-02 12:36:05,743 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 352 transitions. Word has length 23 [2024-11-02 12:36:05,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:05,745 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 352 transitions. [2024-11-02 12:36:05,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:05,745 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 352 transitions. [2024-11-02 12:36:05,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-02 12:36:05,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:05,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:05,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-02 12:36:05,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:05,947 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:36:05,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:05,948 INFO L85 PathProgramCache]: Analyzing trace with hash 999959660, now seen corresponding path program 1 times [2024-11-02 12:36:05,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:05,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738851284] [2024-11-02 12:36:05,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:05,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:06,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:06,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:06,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738851284] [2024-11-02 12:36:06,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738851284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:06,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:06,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:36:06,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213300313] [2024-11-02 12:36:06,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:06,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:36:06,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:06,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:36:06,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:06,084 INFO L87 Difference]: Start difference. First operand 252 states and 352 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:06,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:06,948 INFO L93 Difference]: Finished difference Result 335 states and 444 transitions. [2024-11-02 12:36:06,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:36:06,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-02 12:36:06,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:06,950 INFO L225 Difference]: With dead ends: 335 [2024-11-02 12:36:06,950 INFO L226 Difference]: Without dead ends: 334 [2024-11-02 12:36:06,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:06,952 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 109 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:06,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 172 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-02 12:36:06,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-02 12:36:06,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 262. [2024-11-02 12:36:06,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 214 states have (on average 1.6401869158878504) internal successors, (351), 252 states have internal predecessors, (351), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 12:36:06,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 367 transitions. [2024-11-02 12:36:06,967 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 367 transitions. Word has length 24 [2024-11-02 12:36:06,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:06,967 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 367 transitions. [2024-11-02 12:36:06,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:06,967 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 367 transitions. [2024-11-02 12:36:06,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-02 12:36:06,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:06,968 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:06,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-02 12:36:06,968 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:36:06,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:06,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1415082349, now seen corresponding path program 1 times [2024-11-02 12:36:06,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:06,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024028236] [2024-11-02 12:36:06,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:06,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:36:07,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2078138728] [2024-11-02 12:36:07,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:07,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:07,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:07,006 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:36:07,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-02 12:36:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:07,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:36:07,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:36:07,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:07,157 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:36:07,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:07,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024028236] [2024-11-02 12:36:07,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-02 12:36:07,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078138728] [2024-11-02 12:36:07,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078138728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:07,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:07,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:36:07,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287735047] [2024-11-02 12:36:07,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:07,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:36:07,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:07,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:36:07,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:07,159 INFO L87 Difference]: Start difference. First operand 262 states and 367 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:07,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:07,508 INFO L93 Difference]: Finished difference Result 278 states and 374 transitions. [2024-11-02 12:36:07,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:36:07,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-02 12:36:07,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:07,510 INFO L225 Difference]: With dead ends: 278 [2024-11-02 12:36:07,510 INFO L226 Difference]: Without dead ends: 274 [2024-11-02 12:36:07,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:07,511 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 38 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:07,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 68 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 12:36:07,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-02 12:36:07,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 262. [2024-11-02 12:36:07,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 214 states have (on average 1.6168224299065421) internal successors, (346), 252 states have internal predecessors, (346), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 12:36:07,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 362 transitions. [2024-11-02 12:36:07,524 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 362 transitions. Word has length 24 [2024-11-02 12:36:07,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:07,525 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 362 transitions. [2024-11-02 12:36:07,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:07,525 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 362 transitions. [2024-11-02 12:36:07,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-02 12:36:07,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:07,526 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:07,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-02 12:36:07,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-02 12:36:07,726 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:36:07,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:07,727 INFO L85 PathProgramCache]: Analyzing trace with hash 933978495, now seen corresponding path program 1 times [2024-11-02 12:36:07,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:07,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725741193] [2024-11-02 12:36:07,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:07,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:07,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:07,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:07,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725741193] [2024-11-02 12:36:07,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725741193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:07,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:07,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:36:07,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682489600] [2024-11-02 12:36:07,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:07,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:36:07,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:07,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:36:07,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:07,976 INFO L87 Difference]: Start difference. First operand 262 states and 362 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:09,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:09,529 INFO L93 Difference]: Finished difference Result 335 states and 436 transitions. [2024-11-02 12:36:09,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:36:09,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-02 12:36:09,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:09,532 INFO L225 Difference]: With dead ends: 335 [2024-11-02 12:36:09,532 INFO L226 Difference]: Without dead ends: 334 [2024-11-02 12:36:09,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:09,533 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 95 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:09,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 169 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-02 12:36:09,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-02 12:36:09,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 264. [2024-11-02 12:36:09,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 216 states have (on average 1.6111111111111112) internal successors, (348), 254 states have internal predecessors, (348), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 12:36:09,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 364 transitions. [2024-11-02 12:36:09,551 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 364 transitions. Word has length 25 [2024-11-02 12:36:09,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:09,553 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 364 transitions. [2024-11-02 12:36:09,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:09,554 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 364 transitions. [2024-11-02 12:36:09,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-02 12:36:09,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:09,555 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:09,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-02 12:36:09,555 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:36:09,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:09,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1332048365, now seen corresponding path program 1 times [2024-11-02 12:36:09,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:09,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231245365] [2024-11-02 12:36:09,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:09,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:09,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:09,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:09,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231245365] [2024-11-02 12:36:09,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231245365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:09,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:09,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:36:09,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853301950] [2024-11-02 12:36:09,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:09,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:36:09,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:09,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:36:09,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:36:09,698 INFO L87 Difference]: Start difference. First operand 264 states and 364 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:10,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:10,672 INFO L93 Difference]: Finished difference Result 347 states and 499 transitions. [2024-11-02 12:36:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:36:10,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-02 12:36:10,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:10,674 INFO L225 Difference]: With dead ends: 347 [2024-11-02 12:36:10,675 INFO L226 Difference]: Without dead ends: 345 [2024-11-02 12:36:10,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:36:10,676 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 121 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:10,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 103 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-02 12:36:10,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-02 12:36:10,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 270. [2024-11-02 12:36:10,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 222 states have (on average 1.5990990990990992) internal successors, (355), 260 states have internal predecessors, (355), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 12:36:10,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 371 transitions. [2024-11-02 12:36:10,691 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 371 transitions. Word has length 25 [2024-11-02 12:36:10,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:10,691 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 371 transitions. [2024-11-02 12:36:10,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:10,692 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 371 transitions. [2024-11-02 12:36:10,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-02 12:36:10,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:10,695 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:10,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-02 12:36:10,697 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:36:10,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:10,697 INFO L85 PathProgramCache]: Analyzing trace with hash 917879981, now seen corresponding path program 1 times [2024-11-02 12:36:10,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:10,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194620785] [2024-11-02 12:36:10,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:10,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:10,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:10,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:10,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194620785] [2024-11-02 12:36:10,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194620785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:10,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:10,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:36:10,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949286021] [2024-11-02 12:36:10,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:10,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:36:10,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:10,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:36:10,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:10,776 INFO L87 Difference]: Start difference. First operand 270 states and 371 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:11,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:11,354 INFO L93 Difference]: Finished difference Result 335 states and 432 transitions. [2024-11-02 12:36:11,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:36:11,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-02 12:36:11,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:11,356 INFO L225 Difference]: With dead ends: 335 [2024-11-02 12:36:11,356 INFO L226 Difference]: Without dead ends: 334 [2024-11-02 12:36:11,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:11,357 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 103 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:11,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 186 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-02 12:36:11,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-02 12:36:11,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 279. [2024-11-02 12:36:11,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 231 states have (on average 1.5974025974025974) internal successors, (369), 269 states have internal predecessors, (369), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 12:36:11,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 385 transitions. [2024-11-02 12:36:11,372 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 385 transitions. Word has length 25 [2024-11-02 12:36:11,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:11,372 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 385 transitions. [2024-11-02 12:36:11,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:11,373 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 385 transitions. [2024-11-02 12:36:11,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-02 12:36:11,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:11,373 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:11,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-02 12:36:11,374 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:36:11,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:11,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1656173507, now seen corresponding path program 1 times [2024-11-02 12:36:11,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:11,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650718555] [2024-11-02 12:36:11,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:11,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:11,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:11,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:11,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650718555] [2024-11-02 12:36:11,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650718555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:11,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:11,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 12:36:11,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754065139] [2024-11-02 12:36:11,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:11,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:36:11,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:11,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:36:11,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-02 12:36:11,527 INFO L87 Difference]: Start difference. First operand 279 states and 385 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:12,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:12,459 INFO L93 Difference]: Finished difference Result 288 states and 392 transitions. [2024-11-02 12:36:12,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:36:12,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-02 12:36:12,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:12,461 INFO L225 Difference]: With dead ends: 288 [2024-11-02 12:36:12,461 INFO L226 Difference]: Without dead ends: 286 [2024-11-02 12:36:12,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:36:12,462 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 212 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:12,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 84 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-02 12:36:12,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-02 12:36:12,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 279. [2024-11-02 12:36:12,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 231 states have (on average 1.5844155844155845) internal successors, (366), 269 states have internal predecessors, (366), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 12:36:12,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 382 transitions. [2024-11-02 12:36:12,482 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 382 transitions. Word has length 26 [2024-11-02 12:36:12,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:12,483 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 382 transitions. [2024-11-02 12:36:12,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:12,483 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 382 transitions. [2024-11-02 12:36:12,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-02 12:36:12,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:12,484 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:12,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-02 12:36:12,485 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:36:12,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:12,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1610491537, now seen corresponding path program 1 times [2024-11-02 12:36:12,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:12,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240067021] [2024-11-02 12:36:12,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:12,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:12,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:12,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240067021] [2024-11-02 12:36:12,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240067021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:12,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:12,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:36:12,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525728823] [2024-11-02 12:36:12,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:12,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:36:12,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:12,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:36:12,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:12,712 INFO L87 Difference]: Start difference. First operand 279 states and 382 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:14,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:14,108 INFO L93 Difference]: Finished difference Result 335 states and 426 transitions. [2024-11-02 12:36:14,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:36:14,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-02 12:36:14,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:14,111 INFO L225 Difference]: With dead ends: 335 [2024-11-02 12:36:14,111 INFO L226 Difference]: Without dead ends: 334 [2024-11-02 12:36:14,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:14,112 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 102 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:14,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 180 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-02 12:36:14,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-02 12:36:14,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 281. [2024-11-02 12:36:14,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 233 states have (on average 1.5793991416309012) internal successors, (368), 271 states have internal predecessors, (368), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 12:36:14,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 384 transitions. [2024-11-02 12:36:14,140 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 384 transitions. Word has length 26 [2024-11-02 12:36:14,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:14,140 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 384 transitions. [2024-11-02 12:36:14,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:14,141 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 384 transitions. [2024-11-02 12:36:14,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-02 12:36:14,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:14,142 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:14,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-02 12:36:14,142 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:36:14,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:14,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1540396816, now seen corresponding path program 1 times [2024-11-02 12:36:14,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:14,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387678263] [2024-11-02 12:36:14,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:14,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:14,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:14,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:14,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387678263] [2024-11-02 12:36:14,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387678263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:14,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:14,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:36:14,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536768532] [2024-11-02 12:36:14,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:14,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:36:14,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:14,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:36:14,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:36:14,224 INFO L87 Difference]: Start difference. First operand 281 states and 384 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:14,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:14,282 INFO L93 Difference]: Finished difference Result 294 states and 397 transitions. [2024-11-02 12:36:14,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:36:14,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-02 12:36:14,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:14,285 INFO L225 Difference]: With dead ends: 294 [2024-11-02 12:36:14,285 INFO L226 Difference]: Without dead ends: 293 [2024-11-02 12:36:14,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:36:14,287 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 79 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:14,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 297 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:36:14,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-02 12:36:14,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 288. [2024-11-02 12:36:14,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 238 states have (on average 1.546218487394958) internal successors, (368), 277 states have internal predecessors, (368), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-02 12:36:14,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 388 transitions. [2024-11-02 12:36:14,307 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 388 transitions. Word has length 27 [2024-11-02 12:36:14,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:14,307 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 388 transitions. [2024-11-02 12:36:14,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:36:14,307 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 388 transitions. [2024-11-02 12:36:14,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-02 12:36:14,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:14,308 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:14,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-02 12:36:14,308 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-02 12:36:14,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:14,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1442378642, now seen corresponding path program 1 times [2024-11-02 12:36:14,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:14,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064439429] [2024-11-02 12:36:14,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:14,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:14,424 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:14,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:14,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064439429] [2024-11-02 12:36:14,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064439429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:36:14,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674208968] [2024-11-02 12:36:14,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:14,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:14,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:14,427 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:36:14,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2533845d-5a82-4029-8ad5-5cd2e1744456/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-02 12:36:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:14,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:36:14,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:36:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:14,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:36:14,614 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:36:14,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674208968] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:36:14,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1791711997] [2024-11-02 12:36:14,639 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-02 12:36:14,639 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:36:14,643 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:36:14,649 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:36:14,649 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:36:16,422 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 94 for LOIs [2024-11-02 12:36:16,553 INFO L180 IcfgInterpreter]: Interpretation finished