./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/pnr2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/pnr2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX --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 67f3347d26557d25fb6343192d3c90918276f96e14a8e5c63bb68c9eaee65f5f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:10:57,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:57,399 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:10:57,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:57,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:57,456 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:57,457 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:57,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:57,461 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:57,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:57,467 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:57,468 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:57,469 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:57,470 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:10:57,471 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:57,472 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:57,472 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:10:57,473 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:10:57,473 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:57,474 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:10:57,476 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:10:57,476 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:10:57,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:57,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:57,478 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:10:57,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:57,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:10:57,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:57,480 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:57,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:57,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:57,481 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:10:57,481 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:10:57,481 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:10:57,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:57,482 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:57,482 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:57,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:57,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:57,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:57,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:57,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:57,484 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:10:57,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:10:57,484 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:57,485 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:57,485 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:57,485 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_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67f3347d26557d25fb6343192d3c90918276f96e14a8e5c63bb68c9eaee65f5f [2023-11-12 00:10:57,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:57,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:57,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:57,775 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:57,776 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:57,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/array-tiling/pnr2.c [2023-11-12 00:11:01,036 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:11:01,329 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:11:01,330 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/sv-benchmarks/c/array-tiling/pnr2.c [2023-11-12 00:11:01,338 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/data/617cbab76/a81466544b0946468b8c2e07d38b0ad8/FLAG877c1f64e [2023-11-12 00:11:01,355 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/data/617cbab76/a81466544b0946468b8c2e07d38b0ad8 [2023-11-12 00:11:01,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:11:01,363 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:11:01,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:11:01,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:11:01,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:11:01,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:11:01" (1/1) ... [2023-11-12 00:11:01,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f95bce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01, skipping insertion in model container [2023-11-12 00:11:01,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:11:01" (1/1) ... [2023-11-12 00:11:01,407 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:11:01,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:11:01,605 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:11:01,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:11:01,644 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:11:01,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01 WrapperNode [2023-11-12 00:11:01,645 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:11:01,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:11:01,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:11:01,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:11:01,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01" (1/1) ... [2023-11-12 00:11:01,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01" (1/1) ... [2023-11-12 00:11:01,687 INFO L138 Inliner]: procedures = 17, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 101 [2023-11-12 00:11:01,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:11:01,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:11:01,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:11:01,689 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:11:01,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01" (1/1) ... [2023-11-12 00:11:01,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01" (1/1) ... [2023-11-12 00:11:01,700 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01" (1/1) ... [2023-11-12 00:11:01,701 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01" (1/1) ... [2023-11-12 00:11:01,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01" (1/1) ... [2023-11-12 00:11:01,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01" (1/1) ... [2023-11-12 00:11:01,714 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01" (1/1) ... [2023-11-12 00:11:01,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01" (1/1) ... [2023-11-12 00:11:01,718 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:11:01,719 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:11:01,719 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:11:01,719 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:11:01,720 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01" (1/1) ... [2023-11-12 00:11:01,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:11:01,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:01,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:11:01,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:11:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:11:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:11:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:11:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:11:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2023-11-12 00:11:01,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2023-11-12 00:11:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:11:01,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:11:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:11:01,862 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:11:01,864 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:11:02,156 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:11:02,211 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:11:02,211 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:11:02,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:02 BoogieIcfgContainer [2023-11-12 00:11:02,214 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:11:02,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:11:02,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:11:02,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:11:02,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:11:01" (1/3) ... [2023-11-12 00:11:02,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7335f777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:02, skipping insertion in model container [2023-11-12 00:11:02,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:01" (2/3) ... [2023-11-12 00:11:02,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7335f777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:02, skipping insertion in model container [2023-11-12 00:11:02,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:02" (3/3) ... [2023-11-12 00:11:02,225 INFO L112 eAbstractionObserver]: Analyzing ICFG pnr2.c [2023-11-12 00:11:02,245 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:11:02,245 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-12 00:11:02,300 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:11:02,308 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@1eda079c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:11:02,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-12 00:11:02,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 36 states have (on average 1.8055555555555556) internal successors, (65), 58 states have internal predecessors, (65), 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) [2023-11-12 00:11:02,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:11:02,319 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:02,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:11:02,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:11:02,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:02,327 INFO L85 PathProgramCache]: Analyzing trace with hash 4866930, now seen corresponding path program 1 times [2023-11-12 00:11:02,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:02,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759046927] [2023-11-12 00:11:02,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:02,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:02,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:02,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:02,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759046927] [2023-11-12 00:11:02,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759046927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:02,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:02,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:02,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542013328] [2023-11-12 00:11:02,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:02,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:11:02,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:02,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:11:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:11:02,823 INFO L87 Difference]: Start difference. First operand has 62 states, 36 states have (on average 1.8055555555555556) internal successors, (65), 58 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2023-11-12 00:11:02,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:02,930 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2023-11-12 00:11:02,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:11:02,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 [2023-11-12 00:11:02,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:02,943 INFO L225 Difference]: With dead ends: 76 [2023-11-12 00:11:02,944 INFO L226 Difference]: Without dead ends: 58 [2023-11-12 00:11:02,947 INFO L412 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 [2023-11-12 00:11:02,955 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 121 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:02,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 57 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:11:02,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-12 00:11:03,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-12 00:11:03,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 54 states have internal predecessors, (58), 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) [2023-11-12 00:11:03,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2023-11-12 00:11:03,020 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 4 [2023-11-12 00:11:03,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:03,021 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2023-11-12 00:11:03,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2023-11-12 00:11:03,022 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2023-11-12 00:11:03,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:11:03,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:03,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 00:11:03,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:11:03,024 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:11:03,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:03,026 INFO L85 PathProgramCache]: Analyzing trace with hash 150874886, now seen corresponding path program 1 times [2023-11-12 00:11:03,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:03,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170976319] [2023-11-12 00:11:03,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:03,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:03,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:03,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:03,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170976319] [2023-11-12 00:11:03,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170976319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:03,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:03,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:11:03,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104593118] [2023-11-12 00:11:03,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:03,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:11:03,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:03,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:11:03,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:11:03,370 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:11:03,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:03,449 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2023-11-12 00:11:03,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:11:03,450 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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 5 [2023-11-12 00:11:03,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:03,451 INFO L225 Difference]: With dead ends: 58 [2023-11-12 00:11:03,451 INFO L226 Difference]: Without dead ends: 57 [2023-11-12 00:11:03,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:11:03,453 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 110 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:03,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 52 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:11:03,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-12 00:11:03,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-11-12 00:11:03,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 53 states have internal predecessors, (57), 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) [2023-11-12 00:11:03,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2023-11-12 00:11:03,465 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 5 [2023-11-12 00:11:03,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:03,466 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2023-11-12 00:11:03,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:11:03,466 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2023-11-12 00:11:03,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:11:03,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:03,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:03,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:11:03,468 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:11:03,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:03,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1201546686, now seen corresponding path program 1 times [2023-11-12 00:11:03,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:03,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081162335] [2023-11-12 00:11:03,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:03,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:03,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:03,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:03,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081162335] [2023-11-12 00:11:03,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081162335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:03,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:03,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:03,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480080772] [2023-11-12 00:11:03,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:03,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:11:03,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:03,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:11:03,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:11:03,556 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2023-11-12 00:11:03,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:03,665 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2023-11-12 00:11:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:11:03,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 [2023-11-12 00:11:03,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:03,675 INFO L225 Difference]: With dead ends: 62 [2023-11-12 00:11:03,676 INFO L226 Difference]: Without dead ends: 60 [2023-11-12 00:11:03,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:11:03,683 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 3 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:03,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 126 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:11:03,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-12 00:11:03,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-12 00:11:03,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 56 states have internal predecessors, (60), 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) [2023-11-12 00:11:03,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2023-11-12 00:11:03,697 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 9 [2023-11-12 00:11:03,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:03,698 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2023-11-12 00:11:03,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2023-11-12 00:11:03,698 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2023-11-12 00:11:03,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:11:03,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:03,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:03,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:11:03,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:11:03,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:03,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1802911936, now seen corresponding path program 1 times [2023-11-12 00:11:03,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:03,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798440532] [2023-11-12 00:11:03,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:03,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:03,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:03,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:03,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798440532] [2023-11-12 00:11:03,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798440532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:03,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:03,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:11:03,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319866073] [2023-11-12 00:11:03,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:03,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:11:03,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:03,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:11:03,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:11:03,793 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 00:11:03,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:03,932 INFO L93 Difference]: Finished difference Result 107 states and 116 transitions. [2023-11-12 00:11:03,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:11:03,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-12 00:11:03,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:03,937 INFO L225 Difference]: With dead ends: 107 [2023-11-12 00:11:03,937 INFO L226 Difference]: Without dead ends: 91 [2023-11-12 00:11:03,938 INFO L412 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 [2023-11-12 00:11:03,947 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 25 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:03,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 56 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:11:03,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-12 00:11:03,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2023-11-12 00:11:03,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 79 states have internal predecessors, (86), 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) [2023-11-12 00:11:03,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2023-11-12 00:11:03,961 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 12 [2023-11-12 00:11:03,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:03,962 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2023-11-12 00:11:03,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 00:11:03,963 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2023-11-12 00:11:03,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:11:03,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:03,963 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:03,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:11:03,964 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:11:03,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:03,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1019734866, now seen corresponding path program 1 times [2023-11-12 00:11:03,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:03,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908899352] [2023-11-12 00:11:03,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:03,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:04,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:11:04,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:04,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908899352] [2023-11-12 00:11:04,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908899352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:04,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:04,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:11:04,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378046981] [2023-11-12 00:11:04,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:04,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:11:04,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:04,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:11:04,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:11:04,199 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-12 00:11:04,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:04,371 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2023-11-12 00:11:04,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:11:04,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 12 [2023-11-12 00:11:04,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:04,374 INFO L225 Difference]: With dead ends: 99 [2023-11-12 00:11:04,374 INFO L226 Difference]: Without dead ends: 90 [2023-11-12 00:11:04,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:11:04,377 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 86 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:04,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 46 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:11:04,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-12 00:11:04,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2023-11-12 00:11:04,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 79 states have internal predecessors, (85), 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) [2023-11-12 00:11:04,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2023-11-12 00:11:04,396 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 12 [2023-11-12 00:11:04,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:04,396 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2023-11-12 00:11:04,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-12 00:11:04,397 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2023-11-12 00:11:04,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 00:11:04,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:04,399 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:04,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:11:04,400 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:11:04,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:04,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1401344857, now seen corresponding path program 1 times [2023-11-12 00:11:04,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:04,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336520629] [2023-11-12 00:11:04,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:04,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:04,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:11:04,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:04,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336520629] [2023-11-12 00:11:04,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336520629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:04,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:04,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:04,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375173976] [2023-11-12 00:11:04,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:04,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:11:04,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:04,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:11:04,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:11:04,503 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:11:04,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:04,626 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions. [2023-11-12 00:11:04,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:11:04,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-12 00:11:04,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:04,628 INFO L225 Difference]: With dead ends: 90 [2023-11-12 00:11:04,628 INFO L226 Difference]: Without dead ends: 88 [2023-11-12 00:11:04,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:11:04,629 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 13 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:04,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 90 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:11:04,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-12 00:11:04,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-12 00:11:04,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 82 states have internal predecessors, (88), 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) [2023-11-12 00:11:04,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2023-11-12 00:11:04,658 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 26 [2023-11-12 00:11:04,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:04,659 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2023-11-12 00:11:04,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:11:04,659 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2023-11-12 00:11:04,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-12 00:11:04,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:04,662 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:04,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:11:04,662 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:11:04,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:04,663 INFO L85 PathProgramCache]: Analyzing trace with hash 233578809, now seen corresponding path program 1 times [2023-11-12 00:11:04,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:04,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712367632] [2023-11-12 00:11:04,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:04,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:04,823 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:11:04,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:04,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712367632] [2023-11-12 00:11:04,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712367632] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:11:04,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321363087] [2023-11-12 00:11:04,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:04,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:04,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:04,828 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:11:04,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:11:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:04,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:11:04,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:05,037 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:11:05,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:11:05,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321363087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:05,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:11:05,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-12 00:11:05,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714151166] [2023-11-12 00:11:05,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:05,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:11:05,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:05,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:11:05,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:11:05,041 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 00:11:05,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:05,207 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2023-11-12 00:11:05,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:11:05,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-11-12 00:11:05,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:05,210 INFO L225 Difference]: With dead ends: 88 [2023-11-12 00:11:05,210 INFO L226 Difference]: Without dead ends: 79 [2023-11-12 00:11:05,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:11:05,212 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 45 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:05,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 82 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:11:05,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-12 00:11:05,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-11-12 00:11:05,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.253968253968254) internal successors, (79), 73 states have internal predecessors, (79), 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) [2023-11-12 00:11:05,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2023-11-12 00:11:05,243 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 36 [2023-11-12 00:11:05,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:05,244 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2023-11-12 00:11:05,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 00:11:05,244 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2023-11-12 00:11:05,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-12 00:11:05,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:05,246 INFO L195 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:05,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 00:11:05,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-12 00:11:05,452 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:11:05,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:05,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1705899303, now seen corresponding path program 1 times [2023-11-12 00:11:05,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:05,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268718914] [2023-11-12 00:11:05,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:05,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 00:11:05,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:05,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268718914] [2023-11-12 00:11:05,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268718914] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:11:05,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851112584] [2023-11-12 00:11:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:05,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:05,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:05,597 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:11:05,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:11:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:05,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:11:05,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:05,729 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 00:11:05,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:11:05,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851112584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:05,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:11:05,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-12 00:11:05,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005264191] [2023-11-12 00:11:05,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:05,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:11:05,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:05,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:11:05,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:11:05,732 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:11:05,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:05,857 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2023-11-12 00:11:05,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:11:05,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2023-11-12 00:11:05,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:05,859 INFO L225 Difference]: With dead ends: 79 [2023-11-12 00:11:05,859 INFO L226 Difference]: Without dead ends: 78 [2023-11-12 00:11:05,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-12 00:11:05,861 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 63 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:05,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 66 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:11:05,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-12 00:11:05,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-12 00:11:05,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 72 states have internal predecessors, (78), 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) [2023-11-12 00:11:05,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2023-11-12 00:11:05,871 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 36 [2023-11-12 00:11:05,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:05,873 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2023-11-12 00:11:05,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:11:05,874 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2023-11-12 00:11:05,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-12 00:11:05,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:05,882 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:05,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:11:06,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:06,094 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:11:06,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:06,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1348991443, now seen corresponding path program 1 times [2023-11-12 00:11:06,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:06,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723652010] [2023-11-12 00:11:06,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:06,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:06,246 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:11:06,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:06,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723652010] [2023-11-12 00:11:06,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723652010] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:11:06,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501917907] [2023-11-12 00:11:06,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:06,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:06,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:06,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:11:06,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 00:11:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:06,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:11:06,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:06,415 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:11:06,416 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:11:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:11:06,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501917907] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:11:06,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2049478821] [2023-11-12 00:11:06,546 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2023-11-12 00:11:06,547 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:11:06,551 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:11:06,556 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:11:06,557 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:11:11,402 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 60 for LOIs [2023-11-12 00:11:11,432 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:11:13,612 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1931#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 2 ~SIZE~0) (<= 1073741824 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~value~0#1| 2147483647) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= ~SIZE~0 99999) (not (= 0 |ULTIMATE.start_main_~value~0#1|)) (<= 0 (+ 2147483648 |ULTIMATE.start_main_~value~0#1|)))' at error location [2023-11-12 00:11:13,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:11:13,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:11:13,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-12 00:11:13,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278862590] [2023-11-12 00:11:13,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:11:13,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 00:11:13,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:13,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 00:11:13,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=575, Unknown=4, NotChecked=0, Total=702 [2023-11-12 00:11:13,615 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-12 00:11:13,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:13,823 INFO L93 Difference]: Finished difference Result 121 states and 145 transitions. [2023-11-12 00:11:13,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 00:11:13,824 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 37 [2023-11-12 00:11:13,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:13,825 INFO L225 Difference]: With dead ends: 121 [2023-11-12 00:11:13,825 INFO L226 Difference]: Without dead ends: 112 [2023-11-12 00:11:13,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 83 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=140, Invalid=668, Unknown=4, NotChecked=0, Total=812 [2023-11-12 00:11:13,827 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 73 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:13,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 90 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:11:13,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-12 00:11:13,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2023-11-12 00:11:13,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 101 states have internal predecessors, (112), 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) [2023-11-12 00:11:13,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 126 transitions. [2023-11-12 00:11:13,846 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 126 transitions. Word has length 37 [2023-11-12 00:11:13,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:13,847 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 126 transitions. [2023-11-12 00:11:13,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 10 states have internal predecessors, (74), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-12 00:11:13,847 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 126 transitions. [2023-11-12 00:11:13,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-12 00:11:13,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:13,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:13,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:11:14,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:14,055 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:11:14,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:14,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1343270984, now seen corresponding path program 1 times [2023-11-12 00:11:14,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:14,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710828893] [2023-11-12 00:11:14,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:14,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:14,228 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 00:11:14,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:14,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710828893] [2023-11-12 00:11:14,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710828893] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:11:14,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769940382] [2023-11-12 00:11:14,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:14,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:14,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:14,231 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:11:14,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:11:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:14,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:11:14,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:14,345 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 00:11:14,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:11:14,396 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 00:11:14,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769940382] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:11:14,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [357002429] [2023-11-12 00:11:14,402 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2023-11-12 00:11:14,402 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:11:14,403 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:11:14,403 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:11:14,403 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:11:18,076 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 61 for LOIs [2023-11-12 00:11:18,102 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:11:20,344 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2439#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 2 ~SIZE~0) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= ~SIZE~0 99999) (<= 2147483647 |ULTIMATE.start_main_#t~post10#1|))' at error location [2023-11-12 00:11:20,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:11:20,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:11:20,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-12 00:11:20,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397332590] [2023-11-12 00:11:20,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:11:20,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 00:11:20,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:20,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 00:11:20,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=829, Unknown=1, NotChecked=0, Total=992 [2023-11-12 00:11:20,346 INFO L87 Difference]: Start difference. First operand 110 states and 126 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:11:20,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:20,554 INFO L93 Difference]: Finished difference Result 120 states and 138 transitions. [2023-11-12 00:11:20,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 00:11:20,554 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2023-11-12 00:11:20,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:20,555 INFO L225 Difference]: With dead ends: 120 [2023-11-12 00:11:20,556 INFO L226 Difference]: Without dead ends: 119 [2023-11-12 00:11:20,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 77 SyntacticMatches, 7 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=198, Invalid=1061, Unknown=1, NotChecked=0, Total=1260 [2023-11-12 00:11:20,557 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 88 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:20,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 94 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:11:20,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-12 00:11:20,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2023-11-12 00:11:20,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 107 states have (on average 1.1308411214953271) internal successors, (121), 110 states have internal predecessors, (121), 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) [2023-11-12 00:11:20,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 135 transitions. [2023-11-12 00:11:20,567 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 135 transitions. Word has length 37 [2023-11-12 00:11:20,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:20,567 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 135 transitions. [2023-11-12 00:11:20,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:11:20,568 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 135 transitions. [2023-11-12 00:11:20,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-12 00:11:20,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:20,569 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:20,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:11:20,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:20,775 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:11:20,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:20,775 INFO L85 PathProgramCache]: Analyzing trace with hash -2088723770, now seen corresponding path program 2 times [2023-11-12 00:11:20,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:20,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073800883] [2023-11-12 00:11:20,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:20,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:21,437 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:11:21,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:21,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073800883] [2023-11-12 00:11:21,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073800883] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:11:21,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503378330] [2023-11-12 00:11:21,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 00:11:21,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:21,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:21,440 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:11:21,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 00:11:21,500 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-12 00:11:21,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:11:21,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:11:21,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-12 00:11:21,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:11:21,679 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-12 00:11:21,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503378330] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:11:21,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [933430701] [2023-11-12 00:11:21,682 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2023-11-12 00:11:21,682 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:11:21,683 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:11:21,684 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:11:21,684 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:11:25,146 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 60 for LOIs [2023-11-12 00:11:25,170 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:11:28,133 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3028#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 2 ~SIZE~0) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= ~SIZE~0 99999) (<= 2147483647 |ULTIMATE.start_main_#t~post10#1|))' at error location [2023-11-12 00:11:28,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:11:28,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:11:28,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 2, 3] total 18 [2023-11-12 00:11:28,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716976857] [2023-11-12 00:11:28,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:11:28,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-12 00:11:28,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:28,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-12 00:11:28,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1208, Unknown=6, NotChecked=0, Total=1406 [2023-11-12 00:11:28,137 INFO L87 Difference]: Start difference. First operand 119 states and 135 transitions. Second operand has 18 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 18 states have internal predecessors, (71), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 00:11:28,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:28,720 INFO L93 Difference]: Finished difference Result 135 states and 152 transitions. [2023-11-12 00:11:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 00:11:28,721 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 18 states have internal predecessors, (71), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2023-11-12 00:11:28,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:28,722 INFO L225 Difference]: With dead ends: 135 [2023-11-12 00:11:28,722 INFO L226 Difference]: Without dead ends: 102 [2023-11-12 00:11:28,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 107 SyntacticMatches, 11 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=312, Invalid=2034, Unknown=6, NotChecked=0, Total=2352 [2023-11-12 00:11:28,725 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 183 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:28,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 77 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:11:28,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-12 00:11:28,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-11-12 00:11:28,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 91 states have (on average 1.10989010989011) internal successors, (101), 93 states have internal predecessors, (101), 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) [2023-11-12 00:11:28,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 115 transitions. [2023-11-12 00:11:28,733 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 115 transitions. Word has length 46 [2023-11-12 00:11:28,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:28,733 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 115 transitions. [2023-11-12 00:11:28,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 18 states have internal predecessors, (71), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 00:11:28,734 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 115 transitions. [2023-11-12 00:11:28,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-12 00:11:28,735 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:28,735 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-11-12 00:11:28,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-12 00:11:28,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-12 00:11:28,944 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:11:28,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:28,945 INFO L85 PathProgramCache]: Analyzing trace with hash 998334585, now seen corresponding path program 1 times [2023-11-12 00:11:28,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:28,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398986420] [2023-11-12 00:11:28,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:28,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:29,050 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-12 00:11:29,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:29,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398986420] [2023-11-12 00:11:29,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398986420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:29,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:29,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:29,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933754440] [2023-11-12 00:11:29,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:29,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:11:29,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:29,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:11:29,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:11:29,054 INFO L87 Difference]: Start difference. First operand 102 states and 115 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 00:11:29,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:29,105 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2023-11-12 00:11:29,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:11:29,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 75 [2023-11-12 00:11:29,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:29,107 INFO L225 Difference]: With dead ends: 102 [2023-11-12 00:11:29,107 INFO L226 Difference]: Without dead ends: 101 [2023-11-12 00:11:29,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:11:29,109 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:29,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 38 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:11:29,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-12 00:11:29,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-12 00:11:29,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 91 states have (on average 1.098901098901099) internal successors, (100), 92 states have internal predecessors, (100), 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) [2023-11-12 00:11:29,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 114 transitions. [2023-11-12 00:11:29,117 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 114 transitions. Word has length 75 [2023-11-12 00:11:29,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:29,118 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 114 transitions. [2023-11-12 00:11:29,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 00:11:29,119 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 114 transitions. [2023-11-12 00:11:29,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-12 00:11:29,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:29,121 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-12 00:11:29,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 00:11:29,121 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-12 00:11:29,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:29,122 INFO L85 PathProgramCache]: Analyzing trace with hash -2014571397, now seen corresponding path program 2 times [2023-11-12 00:11:29,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:29,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95178737] [2023-11-12 00:11:29,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:29,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:29,472 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-11-12 00:11:29,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:29,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95178737] [2023-11-12 00:11:29,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95178737] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:11:29,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745547726] [2023-11-12 00:11:29,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 00:11:29,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:29,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:29,476 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:11:29,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 00:11:29,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-12 00:11:29,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:11:29,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:11:29,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-12 00:11:29,838 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:11:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-11-12 00:11:30,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745547726] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:11:30,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1798836845] [2023-11-12 00:11:30,016 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2023-11-12 00:11:30,016 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:11:30,016 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:11:30,017 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:11:30,017 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:11:32,878 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 61 for LOIs [2023-11-12 00:11:32,895 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:11:35,262 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4088#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= ~MAX~0 100000) (= |ULTIMATE.start_main_~DEFAULTVAL~0#1| 0) (<= 2 ~SIZE~0) (<= 1073741824 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~value~0#1| 2147483647) (= 10 |ULTIMATE.start_main_~FIXEDVAL~0#1|) (<= ~SIZE~0 99999) (not (= 0 |ULTIMATE.start_main_~value~0#1|)) (<= 0 (+ 2147483648 |ULTIMATE.start_main_~value~0#1|)))' at error location [2023-11-12 00:11:35,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:11:35,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:11:35,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 3] total 8 [2023-11-12 00:11:35,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584549059] [2023-11-12 00:11:35,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:11:35,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 00:11:35,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:35,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 00:11:35,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=478, Unknown=3, NotChecked=0, Total=650 [2023-11-12 00:11:35,265 INFO L87 Difference]: Start difference. First operand 101 states and 114 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-12 00:11:35,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:35,416 INFO L93 Difference]: Finished difference Result 101 states and 114 transitions. [2023-11-12 00:11:35,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:11:35,417 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 85 [2023-11-12 00:11:35,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:35,417 INFO L225 Difference]: With dead ends: 101 [2023-11-12 00:11:35,417 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:11:35,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 223 SyntacticMatches, 13 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=234, Invalid=633, Unknown=3, NotChecked=0, Total=870 [2023-11-12 00:11:35,419 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 144 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:35,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 12 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:11:35,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:11:35,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:11:35,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:11:35,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:11:35,420 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2023-11-12 00:11:35,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:35,421 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:11:35,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-12 00:11:35,421 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:11:35,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:11:35,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-11-12 00:11:35,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-11-12 00:11:35,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-11-12 00:11:35,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-11-12 00:11:35,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-11-12 00:11:35,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-11-12 00:11:35,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-11-12 00:11:35,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-11-12 00:11:35,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-11-12 00:11:35,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-11-12 00:11:35,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-11-12 00:11:35,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-11-12 00:11:35,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-11-12 00:11:35,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-11-12 00:11:35,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-11-12 00:11:35,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-11-12 00:11:35,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-11-12 00:11:35,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-11-12 00:11:35,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-11-12 00:11:35,426 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-11-12 00:11:35,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-11-12 00:11:35,427 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-11-12 00:11:35,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 00:11:35,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-12 00:11:35,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:11:35,893 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 12 16) the Hoare annotation is: true [2023-11-12 00:11:35,893 INFO L899 garLoopResultBuilder]: For program point ReadFromPortEXIT(lines 12 16) no Hoare annotation was computed. [2023-11-12 00:11:35,893 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-12 00:11:35,893 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-12 00:11:35,894 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 22 65) no Hoare annotation was computed. [2023-11-12 00:11:35,894 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-12 00:11:35,894 INFO L899 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2023-11-12 00:11:35,894 INFO L899 garLoopResultBuilder]: For program point L36-2(lines 36 57) no Hoare annotation was computed. [2023-11-12 00:11:35,894 INFO L899 garLoopResultBuilder]: For program point L36-4(lines 36 57) no Hoare annotation was computed. [2023-11-12 00:11:35,894 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-11-12 00:11:35,894 INFO L899 garLoopResultBuilder]: For program point L36-5(line 36) no Hoare annotation was computed. [2023-11-12 00:11:35,894 INFO L899 garLoopResultBuilder]: For program point L36-6(line 36) no Hoare annotation was computed. [2023-11-12 00:11:35,895 INFO L895 garLoopResultBuilder]: At program point L36-7(lines 36 57) the Hoare annotation is: (let ((.cse0 (<= 2 ~SIZE~0)) (.cse1 (<= ~SIZE~0 99999)) (.cse2 (= ~SIZE~0 (* 2 (div ~SIZE~0 2)))) (.cse3 (<= ~MAX~0 100000))) (or (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 1) .cse1 .cse2 .cse3) (and .cse0 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 .cse3))) [2023-11-12 00:11:35,895 INFO L899 garLoopResultBuilder]: For program point L36-8(lines 36 57) no Hoare annotation was computed. [2023-11-12 00:11:35,895 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-12 00:11:35,895 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-12 00:11:35,895 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-12 00:11:35,895 INFO L899 garLoopResultBuilder]: For program point L45-2(line 45) no Hoare annotation was computed. [2023-11-12 00:11:35,895 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2023-11-12 00:11:35,895 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-12 00:11:35,896 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-11-12 00:11:35,896 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-12 00:11:35,896 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-12 00:11:35,896 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:11:35,896 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (let ((.cse0 (<= 2 ~SIZE~0)) (.cse1 (<= ~SIZE~0 99999)) (.cse2 (= ~SIZE~0 (* 2 (div ~SIZE~0 2)))) (.cse3 (<= ~MAX~0 100000))) (or (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 1) .cse1 .cse2 .cse3) (and .cse0 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 49999) .cse3))) [2023-11-12 00:11:35,896 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2023-11-12 00:11:35,896 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-11-12 00:11:35,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-11-12 00:11:35,897 INFO L899 garLoopResultBuilder]: For program point L55-1(line 55) no Hoare annotation was computed. [2023-11-12 00:11:35,897 INFO L899 garLoopResultBuilder]: For program point L55-2(line 55) no Hoare annotation was computed. [2023-11-12 00:11:35,897 INFO L899 garLoopResultBuilder]: For program point L55-3(line 55) no Hoare annotation was computed. [2023-11-12 00:11:35,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-12 00:11:35,897 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 46) no Hoare annotation was computed. [2023-11-12 00:11:35,897 INFO L895 garLoopResultBuilder]: At program point L39-2(lines 39 46) the Hoare annotation is: (let ((.cse0 (<= 2 ~SIZE~0)) (.cse1 (<= ~SIZE~0 99999)) (.cse2 (= ~SIZE~0 (* 2 (div ~SIZE~0 2)))) (.cse3 (<= ~MAX~0 100000))) (or (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 1) .cse1 .cse2 .cse3) (and .cse0 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 49999) .cse3))) [2023-11-12 00:11:35,897 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-11-12 00:11:35,898 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-11-12 00:11:35,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-12 00:11:35,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-12 00:11:35,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2023-11-12 00:11:35,898 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 56) no Hoare annotation was computed. [2023-11-12 00:11:35,898 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-12 00:11:35,898 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-12 00:11:35,898 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-12 00:11:35,898 INFO L899 garLoopResultBuilder]: For program point L41-2(line 41) no Hoare annotation was computed. [2023-11-12 00:11:35,898 INFO L899 garLoopResultBuilder]: For program point L41-3(line 41) no Hoare annotation was computed. [2023-11-12 00:11:35,899 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-11-12 00:11:35,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:11:35,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-12 00:11:35,899 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 63) no Hoare annotation was computed. [2023-11-12 00:11:35,899 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 63) no Hoare annotation was computed. [2023-11-12 00:11:35,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2023-11-12 00:11:35,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-12 00:11:35,899 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-12 00:11:35,900 INFO L899 garLoopResultBuilder]: For program point L59-3(line 59) no Hoare annotation was computed. [2023-11-12 00:11:35,900 INFO L899 garLoopResultBuilder]: For program point L59-4(line 59) no Hoare annotation was computed. [2023-11-12 00:11:35,900 INFO L895 garLoopResultBuilder]: At program point L59-5(lines 59 62) the Hoare annotation is: (let ((.cse0 (<= 2 ~SIZE~0)) (.cse1 (<= ~SIZE~0 99999)) (.cse2 (= ~SIZE~0 (* 2 (div ~SIZE~0 2)))) (.cse3 (<= ~MAX~0 100000))) (or (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1 .cse2 .cse3) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3))) [2023-11-12 00:11:35,900 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2023-11-12 00:11:35,900 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2023-11-12 00:11:35,900 INFO L899 garLoopResultBuilder]: For program point L51-2(line 51) no Hoare annotation was computed. [2023-11-12 00:11:35,900 INFO L899 garLoopResultBuilder]: For program point L51-3(line 51) no Hoare annotation was computed. [2023-11-12 00:11:35,900 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-12 00:11:35,901 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-12 00:11:35,904 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:35,906 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:11:35,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:11:35 BoogieIcfgContainer [2023-11-12 00:11:35,921 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:11:35,922 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:11:35,922 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:11:35,922 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:11:35,923 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:02" (3/4) ... [2023-11-12 00:11:35,925 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:11:35,929 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ReadFromPort [2023-11-12 00:11:35,935 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-11-12 00:11:35,936 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-12 00:11:35,936 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:11:35,937 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:11:35,937 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:11:36,047 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:11:36,048 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:11:36,048 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:11:36,049 INFO L158 Benchmark]: Toolchain (without parser) took 34686.02ms. Allocated memory was 121.6MB in the beginning and 625.0MB in the end (delta: 503.3MB). Free memory was 78.7MB in the beginning and 229.1MB in the end (delta: -150.4MB). Peak memory consumption was 355.7MB. Max. memory is 16.1GB. [2023-11-12 00:11:36,049 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:11:36,050 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.00ms. Allocated memory is still 121.6MB. Free memory was 78.7MB in the beginning and 67.4MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:11:36,050 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.96ms. Allocated memory is still 121.6MB. Free memory was 67.4MB in the beginning and 65.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:11:36,051 INFO L158 Benchmark]: Boogie Preprocessor took 29.55ms. Allocated memory is still 121.6MB. Free memory was 65.7MB in the beginning and 64.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:11:36,051 INFO L158 Benchmark]: RCFGBuilder took 495.58ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 64.4MB in the beginning and 125.8MB in the end (delta: -61.4MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-11-12 00:11:36,052 INFO L158 Benchmark]: TraceAbstraction took 33703.94ms. Allocated memory was 161.5MB in the beginning and 625.0MB in the end (delta: 463.5MB). Free memory was 124.8MB in the beginning and 234.3MB in the end (delta: -109.6MB). Peak memory consumption was 352.9MB. Max. memory is 16.1GB. [2023-11-12 00:11:36,052 INFO L158 Benchmark]: Witness Printer took 126.23ms. Allocated memory is still 625.0MB. Free memory was 234.3MB in the beginning and 229.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:11:36,055 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.00ms. Allocated memory is still 121.6MB. Free memory was 78.7MB in the beginning and 67.4MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.96ms. Allocated memory is still 121.6MB. Free memory was 67.4MB in the beginning and 65.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.55ms. Allocated memory is still 121.6MB. Free memory was 65.7MB in the beginning and 64.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 495.58ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 64.4MB in the beginning and 125.8MB in the end (delta: -61.4MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 33703.94ms. Allocated memory was 161.5MB in the beginning and 625.0MB in the end (delta: 463.5MB). Free memory was 124.8MB in the beginning and 234.3MB in the end (delta: -109.6MB). Peak memory consumption was 352.9MB. Max. memory is 16.1GB. * Witness Printer took 126.23ms. Allocated memory is still 625.0MB. Free memory was 234.3MB in the beginning and 229.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 62 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 33.6s, OverallIterations: 13, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 984 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 972 mSDsluCounter, 886 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 480 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1240 IncrementalHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 406 mSDtfsCounter, 1240 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 773 GetRequests, 566 SyntacticMatches, 36 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2067 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=10, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 27 NumberOfFragments, 171 HoareAnnotationTreeSize, 11 FomulaSimplifications, 383 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 282 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 697 NumberOfCodeBlocks, 589 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 879 ConstructedInterpolants, 0 QuantifiedInterpolants, 3300 SizeOfPredicates, 11 NumberOfNonLiveVariables, 692 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 23 InterpolantComputations, 9 PerfectInterpolantSequences, 555/683 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: ((((((1 <= i) && (2 <= SIZE)) && (SIZE <= 99999)) && (SIZE == (2 * (SIZE / 2)))) && (MAX <= 100000)) || (((((i == 0) && (2 <= SIZE)) && (SIZE <= 99999)) && (SIZE == (2 * (SIZE / 2)))) && (MAX <= 100000))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((2 <= SIZE) && (i == 1)) && (SIZE <= 99999)) && (SIZE == (2 * (SIZE / 2)))) && (MAX <= 100000)) || (((((2 <= SIZE) && (2 <= i)) && (SIZE <= 99999)) && (SIZE == (2 * (SIZE / 2)))) && (MAX <= 100000))) RESULT: Ultimate proved your program to be correct! [2023-11-12 00:11:36,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd57367e-dd23-441d-b03c-5002c7155844/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE