./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje --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 82dba59912342fc33baf6f71838a6b7d05440c02338f64f7b1e8151e293c49a7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:24:21,076 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:24:21,201 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 07:24:21,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:24:21,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:24:21,277 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:24:21,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:24:21,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:24:21,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:24:21,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:24:21,282 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:24:21,283 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:24:21,283 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:24:21,286 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:24:21,286 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:24:21,287 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:24:21,287 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:24:21,291 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:24:21,291 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:24:21,292 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:24:21,292 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:24:21,293 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:24:21,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:24:21,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:24:21,294 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:24:21,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:24:21,295 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:24:21,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:24:21,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:24:21,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:24:21,301 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:24:21,302 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:24:21,302 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:24:21,320 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:24:21,321 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:24:21,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:24:21,322 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:24:21,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:24:21,322 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:24:21,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:24:21,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:24:21,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:24:21,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:24:21,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:24:21,325 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:24:21,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:24:21,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:24:21,327 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:24:21,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:24:21,327 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_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82dba59912342fc33baf6f71838a6b7d05440c02338f64f7b1e8151e293c49a7 [2024-11-09 07:24:21,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:24:21,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:24:21,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:24:21,752 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:24:21,754 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:24:21,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound50.c Unable to find full path for "g++" [2024-11-09 07:24:23,998 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:24:24,232 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:24:24,233 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound50.c [2024-11-09 07:24:24,242 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/data/d42d651ba/ada9f7d633b04a23843d03ee7c1d040d/FLAG08a93c892 [2024-11-09 07:24:24,257 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/data/d42d651ba/ada9f7d633b04a23843d03ee7c1d040d [2024-11-09 07:24:24,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:24:24,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:24:24,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:24:24,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:24:24,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:24:24,273 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:24:24" (1/1) ... [2024-11-09 07:24:24,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6961a55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24, skipping insertion in model container [2024-11-09 07:24:24,275 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:24:24" (1/1) ... [2024-11-09 07:24:24,308 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:24:24,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:24:24,596 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:24:24,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:24:24,640 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:24:24,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24 WrapperNode [2024-11-09 07:24:24,641 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:24:24,642 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:24:24,642 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:24:24,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:24:24,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24" (1/1) ... [2024-11-09 07:24:24,660 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24" (1/1) ... [2024-11-09 07:24:24,687 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-11-09 07:24:24,690 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:24:24,691 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:24:24,691 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:24:24,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:24:24,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24" (1/1) ... [2024-11-09 07:24:24,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24" (1/1) ... [2024-11-09 07:24:24,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24" (1/1) ... [2024-11-09 07:24:24,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24" (1/1) ... [2024-11-09 07:24:24,718 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24" (1/1) ... [2024-11-09 07:24:24,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24" (1/1) ... [2024-11-09 07:24:24,727 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24" (1/1) ... [2024-11-09 07:24:24,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24" (1/1) ... [2024-11-09 07:24:24,734 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:24:24,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:24:24,736 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:24:24,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:24:24,741 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24" (1/1) ... [2024-11-09 07:24:24,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:24:24,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:24,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:24:24,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:24:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:24:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:24:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:24:24,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:24:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 07:24:24,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 07:24:24,937 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:24:24,943 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:24:25,336 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-09 07:24:25,337 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:24:25,378 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:24:25,379 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:24:25,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:24:25 BoogieIcfgContainer [2024-11-09 07:24:25,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:24:25,385 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:24:25,385 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:24:25,389 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:24:25,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:24:24" (1/3) ... [2024-11-09 07:24:25,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58894ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:25, skipping insertion in model container [2024-11-09 07:24:25,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:24" (2/3) ... [2024-11-09 07:24:25,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58894ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:25, skipping insertion in model container [2024-11-09 07:24:25,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:24:25" (3/3) ... [2024-11-09 07:24:25,396 INFO L112 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound50.c [2024-11-09 07:24:25,417 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:24:25,417 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-09 07:24:25,496 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:24:25,504 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1d52cdd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:24:25,504 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-09 07:24:25,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 30 states have (on average 1.9) internal successors, (57), 54 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) [2024-11-09 07:24:25,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 07:24:25,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:25,516 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 07:24:25,517 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:25,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:25,524 INFO L85 PathProgramCache]: Analyzing trace with hash 118876, now seen corresponding path program 1 times [2024-11-09 07:24:25,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:25,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290935300] [2024-11-09 07:24:25,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:25,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:25,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:25,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:25,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290935300] [2024-11-09 07:24:25,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290935300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:25,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:24:25,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:24:25,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114891506] [2024-11-09 07:24:25,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:25,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:24:25,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:25,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:24:25,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:24:25,735 INFO L87 Difference]: Start difference. First operand has 58 states, 30 states have (on average 1.9) internal successors, (57), 54 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) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:25,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:25,782 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2024-11-09 07:24:25,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:24:25,785 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 07:24:25,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:25,796 INFO L225 Difference]: With dead ends: 78 [2024-11-09 07:24:25,796 INFO L226 Difference]: Without dead ends: 53 [2024-11-09 07:24:25,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:24:25,805 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:25,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:24:25,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-09 07:24:25,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-09 07:24:25,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 29 states have (on average 1.793103448275862) internal successors, (52), 50 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:25,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2024-11-09 07:24:25,857 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 3 [2024-11-09 07:24:25,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:25,857 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2024-11-09 07:24:25,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:25,858 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2024-11-09 07:24:25,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 07:24:25,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:25,859 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 07:24:25,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:24:25,860 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:25,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:25,861 INFO L85 PathProgramCache]: Analyzing trace with hash 117435, now seen corresponding path program 1 times [2024-11-09 07:24:25,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:25,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975090469] [2024-11-09 07:24:25,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:25,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:26,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:26,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975090469] [2024-11-09 07:24:26,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975090469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:26,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:24:26,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:24:26,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456434901] [2024-11-09 07:24:26,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:26,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:24:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:26,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:24:26,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:24:26,010 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:26,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:26,133 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2024-11-09 07:24:26,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:24:26,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 07:24:26,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:26,136 INFO L225 Difference]: With dead ends: 74 [2024-11-09 07:24:26,136 INFO L226 Difference]: Without dead ends: 57 [2024-11-09 07:24:26,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:24:26,139 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 4 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:26,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 142 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:24:26,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-09 07:24:26,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-09 07:24:26,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 33 states have (on average 1.696969696969697) internal successors, (56), 54 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:26,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2024-11-09 07:24:26,150 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 3 [2024-11-09 07:24:26,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:26,150 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2024-11-09 07:24:26,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:26,151 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2024-11-09 07:24:26,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 07:24:26,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:26,152 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:26,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:24:26,153 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:26,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:26,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1080742626, now seen corresponding path program 1 times [2024-11-09 07:24:26,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:26,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791693468] [2024-11-09 07:24:26,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:26,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:24:26,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725582258] [2024-11-09 07:24:26,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:26,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:26,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:26,186 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:24:26,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:24:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:26,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:24:26,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:24:26,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:26,287 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:24:26,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:26,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791693468] [2024-11-09 07:24:26,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:24:26,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725582258] [2024-11-09 07:24:26,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725582258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:26,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:24:26,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 07:24:26,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105828181] [2024-11-09 07:24:26,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:26,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:24:26,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:26,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:24:26,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:26,294 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:26,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:26,443 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2024-11-09 07:24:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:24:26,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 07:24:26,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:26,446 INFO L225 Difference]: With dead ends: 89 [2024-11-09 07:24:26,446 INFO L226 Difference]: Without dead ends: 85 [2024-11-09 07:24:26,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:26,448 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 25 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:26,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 54 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:24:26,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-09 07:24:26,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 73. [2024-11-09 07:24:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 69 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:26,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2024-11-09 07:24:26,461 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 7 [2024-11-09 07:24:26,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:26,462 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2024-11-09 07:24:26,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:26,462 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2024-11-09 07:24:26,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 07:24:26,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:26,463 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:26,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:24:26,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:26,668 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:26,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:26,669 INFO L85 PathProgramCache]: Analyzing trace with hash -856716911, now seen corresponding path program 1 times [2024-11-09 07:24:26,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:26,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013052820] [2024-11-09 07:24:26,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:26,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:26,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:26,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:26,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013052820] [2024-11-09 07:24:26,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013052820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:26,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:24:26,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 07:24:26,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863583243] [2024-11-09 07:24:26,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:26,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:24:26,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:26,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:24:26,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:26,750 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:26,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:26,882 INFO L93 Difference]: Finished difference Result 85 states and 99 transitions. [2024-11-09 07:24:26,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:24:26,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 07:24:26,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:26,886 INFO L225 Difference]: With dead ends: 85 [2024-11-09 07:24:26,886 INFO L226 Difference]: Without dead ends: 83 [2024-11-09 07:24:26,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:26,892 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 22 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:26,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 52 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:24:26,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-09 07:24:26,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 74. [2024-11-09 07:24:26,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 49 states have (on average 1.6326530612244898) internal successors, (80), 70 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:26,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 84 transitions. [2024-11-09 07:24:26,911 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 84 transitions. Word has length 8 [2024-11-09 07:24:26,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:26,911 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 84 transitions. [2024-11-09 07:24:26,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:26,912 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 84 transitions. [2024-11-09 07:24:26,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 07:24:26,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:26,912 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:26,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:24:26,915 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:26,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:26,916 INFO L85 PathProgramCache]: Analyzing trace with hash -788420412, now seen corresponding path program 1 times [2024-11-09 07:24:26,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:26,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398705619] [2024-11-09 07:24:26,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:26,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:27,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:27,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:27,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398705619] [2024-11-09 07:24:27,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398705619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:27,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:24:27,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 07:24:27,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019864475] [2024-11-09 07:24:27,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:27,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:24:27,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:27,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:24:27,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:27,028 INFO L87 Difference]: Start difference. First operand 74 states and 84 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:27,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:27,164 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2024-11-09 07:24:27,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:24:27,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 07:24:27,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:27,166 INFO L225 Difference]: With dead ends: 89 [2024-11-09 07:24:27,166 INFO L226 Difference]: Without dead ends: 83 [2024-11-09 07:24:27,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:27,170 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 21 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:27,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 58 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:24:27,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-09 07:24:27,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2024-11-09 07:24:27,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 74 states have internal predecessors, (82), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:27,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2024-11-09 07:24:27,188 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 9 [2024-11-09 07:24:27,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:27,189 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2024-11-09 07:24:27,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:27,189 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2024-11-09 07:24:27,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 07:24:27,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:27,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:27,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:24:27,194 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:27,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:27,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1757770074, now seen corresponding path program 1 times [2024-11-09 07:24:27,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:27,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101904456] [2024-11-09 07:24:27,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:27,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:27,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:27,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:27,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101904456] [2024-11-09 07:24:27,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101904456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:27,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:24:27,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:24:27,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933293575] [2024-11-09 07:24:27,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:27,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:24:27,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:27,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:24:27,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:24:27,319 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:27,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:27,573 INFO L93 Difference]: Finished difference Result 93 states and 102 transitions. [2024-11-09 07:24:27,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:24:27,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 07:24:27,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:27,575 INFO L225 Difference]: With dead ends: 93 [2024-11-09 07:24:27,575 INFO L226 Difference]: Without dead ends: 90 [2024-11-09 07:24:27,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:24:27,577 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 60 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:27,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 53 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:24:27,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-09 07:24:27,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 84. [2024-11-09 07:24:27,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 80 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:27,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2024-11-09 07:24:27,594 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 11 [2024-11-09 07:24:27,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:27,594 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2024-11-09 07:24:27,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:27,595 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2024-11-09 07:24:27,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 07:24:27,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:27,599 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:27,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:24:27,599 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:27,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:27,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1294891896, now seen corresponding path program 1 times [2024-11-09 07:24:27,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:27,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049514532] [2024-11-09 07:24:27,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:27,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:27,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:27,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049514532] [2024-11-09 07:24:27,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049514532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:27,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:24:27,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:24:27,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944995622] [2024-11-09 07:24:27,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:27,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:24:27,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:27,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:24:27,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:24:27,778 INFO L87 Difference]: Start difference. First operand 84 states and 93 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:27,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:27,933 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2024-11-09 07:24:27,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:24:27,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 07:24:27,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:27,935 INFO L225 Difference]: With dead ends: 89 [2024-11-09 07:24:27,935 INFO L226 Difference]: Without dead ends: 79 [2024-11-09 07:24:27,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:24:27,937 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 21 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:27,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 65 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:24:27,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-09 07:24:27,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2024-11-09 07:24:27,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 52 states have (on average 1.5384615384615385) internal successors, (80), 73 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2024-11-09 07:24:27,948 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 13 [2024-11-09 07:24:27,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:27,949 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2024-11-09 07:24:27,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:24:27,950 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2024-11-09 07:24:27,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 07:24:27,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:27,953 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:27,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:24:27,954 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:27,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:27,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1775095388, now seen corresponding path program 1 times [2024-11-09 07:24:27,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:27,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239640420] [2024-11-09 07:24:27,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:27,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:28,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:28,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:28,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239640420] [2024-11-09 07:24:28,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239640420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:28,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:24:28,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:24:28,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215991581] [2024-11-09 07:24:28,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:28,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:24:28,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:28,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:24:28,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:28,042 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:28,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:28,079 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2024-11-09 07:24:28,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:24:28,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 18 [2024-11-09 07:24:28,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:28,082 INFO L225 Difference]: With dead ends: 79 [2024-11-09 07:24:28,082 INFO L226 Difference]: Without dead ends: 77 [2024-11-09 07:24:28,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:28,084 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 1 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:28,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 95 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:24:28,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-09 07:24:28,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-09 07:24:28,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 52 states have (on average 1.5) internal successors, (78), 73 states have internal predecessors, (78), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:28,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2024-11-09 07:24:28,111 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 18 [2024-11-09 07:24:28,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:28,113 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2024-11-09 07:24:28,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:28,113 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2024-11-09 07:24:28,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 07:24:28,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:28,114 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:28,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:24:28,118 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:28,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:28,119 INFO L85 PathProgramCache]: Analyzing trace with hash -388357784, now seen corresponding path program 1 times [2024-11-09 07:24:28,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:28,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872853998] [2024-11-09 07:24:28,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:28,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:28,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:28,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:28,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872853998] [2024-11-09 07:24:28,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872853998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:28,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:24:28,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:24:28,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794070558] [2024-11-09 07:24:28,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:28,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:24:28,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:28,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:24:28,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:24:28,329 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:28,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:28,465 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2024-11-09 07:24:28,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:24:28,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 22 [2024-11-09 07:24:28,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:28,467 INFO L225 Difference]: With dead ends: 80 [2024-11-09 07:24:28,467 INFO L226 Difference]: Without dead ends: 79 [2024-11-09 07:24:28,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:24:28,469 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 1 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:28,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 68 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:24:28,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-09 07:24:28,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2024-11-09 07:24:28,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.490566037735849) internal successors, (79), 74 states have internal predecessors, (79), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:28,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2024-11-09 07:24:28,480 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 22 [2024-11-09 07:24:28,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:28,480 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2024-11-09 07:24:28,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:28,481 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2024-11-09 07:24:28,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 07:24:28,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:28,482 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:28,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:24:28,483 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:28,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:28,484 INFO L85 PathProgramCache]: Analyzing trace with hash 845810663, now seen corresponding path program 1 times [2024-11-09 07:24:28,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:28,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166588730] [2024-11-09 07:24:28,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:28,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:28,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:28,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166588730] [2024-11-09 07:24:28,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166588730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:28,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:24:28,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:24:28,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893833576] [2024-11-09 07:24:28,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:28,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:24:28,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:28,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:24:28,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:24:28,578 INFO L87 Difference]: Start difference. First operand 78 states and 83 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:28,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:28,675 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2024-11-09 07:24:28,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:24:28,676 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-09 07:24:28,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:28,677 INFO L225 Difference]: With dead ends: 80 [2024-11-09 07:24:28,677 INFO L226 Difference]: Without dead ends: 79 [2024-11-09 07:24:28,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:24:28,679 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:28,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:24:28,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-09 07:24:28,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-11-09 07:24:28,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 75 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:28,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2024-11-09 07:24:28,696 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 23 [2024-11-09 07:24:28,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:28,697 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2024-11-09 07:24:28,697 INFO L472 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:28,697 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2024-11-09 07:24:28,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 07:24:28,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:28,697 INFO L215 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] [2024-11-09 07:24:28,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 07:24:28,698 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:28,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:28,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1075229353, now seen corresponding path program 1 times [2024-11-09 07:24:28,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:28,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513846288] [2024-11-09 07:24:28,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:28,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:28,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:28,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:28,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513846288] [2024-11-09 07:24:28,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513846288] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:24:28,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220734586] [2024-11-09 07:24:28,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:28,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:28,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:28,821 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:24:28,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:24:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:28,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:24:28,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:24:29,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:29,001 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:24:29,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220734586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:29,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:24:29,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-09 07:24:29,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135418343] [2024-11-09 07:24:29,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:29,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:24:29,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:29,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:24:29,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:24:29,004 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:29,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:29,046 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2024-11-09 07:24:29,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:24:29,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-09 07:24:29,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:29,047 INFO L225 Difference]: With dead ends: 79 [2024-11-09 07:24:29,047 INFO L226 Difference]: Without dead ends: 78 [2024-11-09 07:24:29,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:24:29,048 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 34 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:29,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 135 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:24:29,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-09 07:24:29,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-09 07:24:29,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 54 states have (on average 1.462962962962963) internal successors, (79), 74 states have internal predecessors, (79), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:29,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2024-11-09 07:24:29,066 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 25 [2024-11-09 07:24:29,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:29,066 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2024-11-09 07:24:29,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:29,067 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2024-11-09 07:24:29,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 07:24:29,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:29,068 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:29,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:24:29,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 07:24:29,271 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:29,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:29,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1027628385, now seen corresponding path program 1 times [2024-11-09 07:24:29,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:29,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099621679] [2024-11-09 07:24:29,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:29,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:29,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:29,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:29,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099621679] [2024-11-09 07:24:29,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099621679] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:24:29,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56626931] [2024-11-09 07:24:29,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:29,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:29,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:29,420 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:24:29,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:24:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:29,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:24:29,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:24:29,594 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:29,594 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:24:29,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56626931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:29,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:24:29,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-09 07:24:29,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498151113] [2024-11-09 07:24:29,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:29,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:24:29,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:29,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:24:29,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:24:29,597 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:29,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:29,686 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2024-11-09 07:24:29,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:24:29,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-09 07:24:29,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:29,687 INFO L225 Difference]: With dead ends: 85 [2024-11-09 07:24:29,687 INFO L226 Difference]: Without dead ends: 84 [2024-11-09 07:24:29,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 07:24:29,690 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 30 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:29,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 183 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:24:29,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-09 07:24:29,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 77. [2024-11-09 07:24:29,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 73 states have internal predecessors, (78), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:29,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2024-11-09 07:24:29,702 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2024-11-09 07:24:29,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:29,703 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2024-11-09 07:24:29,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:29,703 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2024-11-09 07:24:29,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 07:24:29,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:29,705 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:24:29,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 07:24:29,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 07:24:29,909 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:29,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:29,910 INFO L85 PathProgramCache]: Analyzing trace with hash 449712366, now seen corresponding path program 1 times [2024-11-09 07:24:29,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:29,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998652192] [2024-11-09 07:24:29,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:29,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:30,037 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:30,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:30,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998652192] [2024-11-09 07:24:30,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998652192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:24:30,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89886980] [2024-11-09 07:24:30,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:30,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:30,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:30,041 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:24:30,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:24:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:30,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:24:30,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:24:30,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:30,210 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:24:30,329 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:30,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89886980] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:24:30,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1923038988] [2024-11-09 07:24:30,353 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-09 07:24:30,353 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:24:30,358 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:24:30,365 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:24:30,366 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:24:32,950 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 07:24:32,963 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:24:36,755 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2501#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y~0#1_53| Int)) (and (<= 1 |v_ULTIMATE.start_main_~y~0#1_53|) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |v_ULTIMATE.start_main_~y~0#1_53| (* |v_ULTIMATE.start_main_~y~0#1_53| |v_ULTIMATE.start_main_~y~0#1_53|))) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_53| |v_ULTIMATE.start_main_~y~0#1_53|)))) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 51 ~counter~0) (<= ~counter~0 2147483647))' at error location [2024-11-09 07:24:36,755 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:24:36,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:24:36,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-11-09 07:24:36,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827647196] [2024-11-09 07:24:36,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:24:36,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:24:36,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:36,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:24:36,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2024-11-09 07:24:36,762 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:24:37,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:37,018 INFO L93 Difference]: Finished difference Result 194 states and 200 transitions. [2024-11-09 07:24:37,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 07:24:37,019 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2024-11-09 07:24:37,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:37,020 INFO L225 Difference]: With dead ends: 194 [2024-11-09 07:24:37,021 INFO L226 Difference]: Without dead ends: 179 [2024-11-09 07:24:37,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 57 SyntacticMatches, 7 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=196, Invalid=1064, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 07:24:37,023 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 87 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:37,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 355 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:24:37,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-09 07:24:37,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 127. [2024-11-09 07:24:37,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 99 states have (on average 1.5252525252525253) internal successors, (151), 118 states have internal predecessors, (151), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:24:37,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 159 transitions. [2024-11-09 07:24:37,052 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 159 transitions. Word has length 29 [2024-11-09 07:24:37,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:37,052 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 159 transitions. [2024-11-09 07:24:37,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:24:37,053 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 159 transitions. [2024-11-09 07:24:37,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 07:24:37,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:37,054 INFO L215 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] [2024-11-09 07:24:37,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 07:24:37,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 07:24:37,255 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:37,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:37,255 INFO L85 PathProgramCache]: Analyzing trace with hash 449713104, now seen corresponding path program 1 times [2024-11-09 07:24:37,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:37,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209087483] [2024-11-09 07:24:37,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:37,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:24:37,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [559674380] [2024-11-09 07:24:37,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:37,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:37,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:37,283 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:24:37,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:24:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:37,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:24:37,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:24:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:37,412 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:24:37,535 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:37,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:37,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209087483] [2024-11-09 07:24:37,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:24:37,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559674380] [2024-11-09 07:24:37,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559674380] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:24:37,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [299191111] [2024-11-09 07:24:37,540 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 07:24:37,541 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:24:37,541 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:24:37,541 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:24:37,542 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:24:39,264 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 07:24:39,279 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:24:41,779 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3059#(and (<= ~counter~0 50) (exists ((|v_ULTIMATE.start_main_~y~0#1_60| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |v_ULTIMATE.start_main_~y~0#1_60|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_60| |v_ULTIMATE.start_main_~y~0#1_60|)) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~y~0#1_60| |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~k~0#1|))))' at error location [2024-11-09 07:24:41,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:24:41,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:24:41,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-09 07:24:41,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484654661] [2024-11-09 07:24:41,780 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 07:24:41,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:24:41,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:41,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:24:41,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-09 07:24:41,782 INFO L87 Difference]: Start difference. First operand 127 states and 159 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:42,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:42,033 INFO L93 Difference]: Finished difference Result 157 states and 186 transitions. [2024-11-09 07:24:42,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:24:42,034 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2024-11-09 07:24:42,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:42,036 INFO L225 Difference]: With dead ends: 157 [2024-11-09 07:24:42,036 INFO L226 Difference]: Without dead ends: 153 [2024-11-09 07:24:42,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 58 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:24:42,038 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 101 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:42,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 100 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:24:42,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-09 07:24:42,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 127. [2024-11-09 07:24:42,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 101 states have (on average 1.4257425742574257) internal successors, (144), 118 states have internal predecessors, (144), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:24:42,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 152 transitions. [2024-11-09 07:24:42,049 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 152 transitions. Word has length 29 [2024-11-09 07:24:42,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:42,050 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 152 transitions. [2024-11-09 07:24:42,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:42,050 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 152 transitions. [2024-11-09 07:24:42,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 07:24:42,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:42,051 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:42,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 07:24:42,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:42,255 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:42,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:42,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1056204387, now seen corresponding path program 1 times [2024-11-09 07:24:42,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:42,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861764950] [2024-11-09 07:24:42,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:42,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:42,356 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:42,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:42,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861764950] [2024-11-09 07:24:42,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861764950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:24:42,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007629423] [2024-11-09 07:24:42,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:42,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:42,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:42,360 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:24:42,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 07:24:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:42,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:24:42,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:24:42,554 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:42,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:24:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:42,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007629423] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:24:42,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [293398512] [2024-11-09 07:24:42,656 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 07:24:42,656 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:24:42,657 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:24:42,657 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:24:42,657 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:24:44,062 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 07:24:44,073 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:24:46,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [293398512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:46,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:24:46,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [4, 4, 4] total 23 [2024-11-09 07:24:46,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600677995] [2024-11-09 07:24:46,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:46,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 07:24:46,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:46,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 07:24:46,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-11-09 07:24:46,234 INFO L87 Difference]: Start difference. First operand 127 states and 152 transitions. Second operand has 16 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:48,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:48,557 INFO L93 Difference]: Finished difference Result 129 states and 155 transitions. [2024-11-09 07:24:48,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 07:24:48,557 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-09 07:24:48,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:48,559 INFO L225 Difference]: With dead ends: 129 [2024-11-09 07:24:48,559 INFO L226 Difference]: Without dead ends: 119 [2024-11-09 07:24:48,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 62 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=344, Invalid=988, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 07:24:48,560 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 55 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:48,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 24 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 07:24:48,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-09 07:24:48,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2024-11-09 07:24:48,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 101 states have (on average 1.1485148514851484) internal successors, (116), 108 states have internal predecessors, (116), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:24:48,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 124 transitions. [2024-11-09 07:24:48,573 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 124 transitions. Word has length 30 [2024-11-09 07:24:48,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:48,573 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 124 transitions. [2024-11-09 07:24:48,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:24:48,574 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 124 transitions. [2024-11-09 07:24:48,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 07:24:48,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:48,574 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:48,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 07:24:48,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:48,779 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:48,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:48,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1617402318, now seen corresponding path program 1 times [2024-11-09 07:24:48,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:48,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310990837] [2024-11-09 07:24:48,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:48,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:48,909 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:48,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:48,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310990837] [2024-11-09 07:24:48,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310990837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:24:48,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633994749] [2024-11-09 07:24:48,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:48,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:48,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:48,911 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:24:48,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 07:24:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:48,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:24:48,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:24:49,069 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:49,070 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:24:49,153 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:24:49,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633994749] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:24:49,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [60471383] [2024-11-09 07:24:49,155 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 07:24:49,156 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:24:49,156 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:24:49,157 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:24:49,157 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:24:50,450 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 07:24:50,457 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:24:52,589 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4088#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= ~counter~0 50) (<= 1 |ULTIMATE.start_main_~k~0#1|) (<= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807))' at error location [2024-11-09 07:24:52,590 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:24:52,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:24:52,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 07:24:52,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45251467] [2024-11-09 07:24:52,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:24:52,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 07:24:52,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:52,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 07:24:52,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2024-11-09 07:24:52,592 INFO L87 Difference]: Start difference. First operand 117 states and 124 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:24:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:52,848 INFO L93 Difference]: Finished difference Result 127 states and 135 transitions. [2024-11-09 07:24:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:24:52,848 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 31 [2024-11-09 07:24:52,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:52,850 INFO L225 Difference]: With dead ends: 127 [2024-11-09 07:24:52,850 INFO L226 Difference]: Without dead ends: 123 [2024-11-09 07:24:52,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 63 SyntacticMatches, 9 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=110, Invalid=592, Unknown=0, NotChecked=0, Total=702 [2024-11-09 07:24:52,851 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 46 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:52,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 89 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:24:52,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-09 07:24:52,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 115. [2024-11-09 07:24:52,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 101 states have (on average 1.0891089108910892) internal successors, (110), 106 states have internal predecessors, (110), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:24:52,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 118 transitions. [2024-11-09 07:24:52,865 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 118 transitions. Word has length 31 [2024-11-09 07:24:52,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:52,865 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 118 transitions. [2024-11-09 07:24:52,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:24:52,866 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 118 transitions. [2024-11-09 07:24:52,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 07:24:52,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:52,867 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:52,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 07:24:53,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 07:24:53,072 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:53,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:53,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1445606197, now seen corresponding path program 1 times [2024-11-09 07:24:53,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:53,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265779846] [2024-11-09 07:24:53,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:53,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:53,133 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 07:24:53,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:53,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265779846] [2024-11-09 07:24:53,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265779846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:53,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:24:53,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:24:53,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479382426] [2024-11-09 07:24:53,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:53,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:24:53,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:53,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:24:53,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:53,138 INFO L87 Difference]: Start difference. First operand 115 states and 118 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:53,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:53,231 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2024-11-09 07:24:53,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:24:53,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2024-11-09 07:24:53,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:53,233 INFO L225 Difference]: With dead ends: 118 [2024-11-09 07:24:53,233 INFO L226 Difference]: Without dead ends: 109 [2024-11-09 07:24:53,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:53,234 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:53,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 25 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:24:53,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-09 07:24:53,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-09 07:24:53,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.063157894736842) internal successors, (101), 100 states have internal predecessors, (101), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:24:53,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2024-11-09 07:24:53,247 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 47 [2024-11-09 07:24:53,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:53,247 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2024-11-09 07:24:53,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:53,248 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2024-11-09 07:24:53,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 07:24:53,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:53,249 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-11-09 07:24:53,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 07:24:53,249 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:24:53,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:53,253 INFO L85 PathProgramCache]: Analyzing trace with hash 526781838, now seen corresponding path program 2 times [2024-11-09 07:24:53,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:53,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585067989] [2024-11-09 07:24:53,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:53,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:24:53,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:53,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585067989] [2024-11-09 07:24:53,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585067989] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:24:53,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562755805] [2024-11-09 07:24:53,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:24:53,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:53,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:53,517 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:24:53,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 07:24:53,573 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 07:24:53,574 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:24:53,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:24:53,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:14,199 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (<= .cse0 (+ 9223372036854775806 (* 2 |ULTIMATE.start_main_~y~0#1|))) (<= .cse0 9223372036854775807) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~y~0#1| (div (+ (* (- 1) |ULTIMATE.start_main_~y~0#1|) .cse0) 2)))))) is different from true [2024-11-09 07:25:14,222 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 2 not checked. [2024-11-09 07:25:14,223 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:25:22,672 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-09 07:25:22,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562755805] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 07:25:22,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:25:22,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8] total 19 [2024-11-09 07:25:22,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224687506] [2024-11-09 07:25:22,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:22,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:25:22,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:22,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:25:22,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=4, NotChecked=34, Total=380 [2024-11-09 07:25:22,675 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand has 7 states, 5 states have (on average 7.4) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:25:25,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:25,002 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2024-11-09 07:25:25,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:25:25,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.4) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2024-11-09 07:25:25,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:25,003 INFO L225 Difference]: With dead ends: 109 [2024-11-09 07:25:25,003 INFO L226 Difference]: Without dead ends: 107 [2024-11-09 07:25:25,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=4, NotChecked=40, Total=506 [2024-11-09 07:25:25,004 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 86 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:25,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 38 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:25:25,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-09 07:25:25,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-09 07:25:25,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.0421052631578946) internal successors, (99), 98 states have internal predecessors, (99), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:25:25,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2024-11-09 07:25:25,031 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 75 [2024-11-09 07:25:25,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:25,031 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2024-11-09 07:25:25,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.4) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:25:25,032 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2024-11-09 07:25:25,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 07:25:25,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:25,034 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2024-11-09 07:25:25,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 07:25:25,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 07:25:25,234 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:25:25,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:25,235 INFO L85 PathProgramCache]: Analyzing trace with hash -3527496, now seen corresponding path program 2 times [2024-11-09 07:25:25,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:25,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992065987] [2024-11-09 07:25:25,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:25,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:25,596 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:25:25,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:25,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992065987] [2024-11-09 07:25:25,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992065987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:25:25,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664580612] [2024-11-09 07:25:25,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:25:25,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:25,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:25,600 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:25,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 07:25:25,705 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 07:25:25,705 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:25:25,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 07:25:25,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:25,920 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:25:25,920 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:25:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:25:26,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664580612] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:25:26,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [299391411] [2024-11-09 07:25:26,265 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-09 07:25:26,265 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:25:26,266 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:25:26,266 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:25:26,266 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:25:27,426 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 07:25:27,433 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:25:31,882 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5956#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~y~0#1_85| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_85| |v_ULTIMATE.start_main_~y~0#1_85|)) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ (* |v_ULTIMATE.start_main_~y~0#1_85| |v_ULTIMATE.start_main_~y~0#1_85|) |v_ULTIMATE.start_main_~y~0#1_85|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_85|))) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 51 ~counter~0) (<= ~counter~0 2147483647))' at error location [2024-11-09 07:25:31,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:25:31,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:25:31,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 25 [2024-11-09 07:25:31,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548688022] [2024-11-09 07:25:31,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:25:31,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 07:25:31,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:31,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 07:25:31,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=1463, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 07:25:31,885 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand has 25 states, 25 states have (on average 6.96) internal successors, (174), 25 states have internal predecessors, (174), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-09 07:25:32,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:32,575 INFO L93 Difference]: Finished difference Result 253 states and 258 transitions. [2024-11-09 07:25:32,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 07:25:32,575 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 6.96) internal successors, (174), 25 states have internal predecessors, (174), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 95 [2024-11-09 07:25:32,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:32,577 INFO L225 Difference]: With dead ends: 253 [2024-11-09 07:25:32,577 INFO L226 Difference]: Without dead ends: 242 [2024-11-09 07:25:32,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 234 SyntacticMatches, 22 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2056 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=658, Invalid=2882, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 07:25:32,580 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 94 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:32,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 349 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:25:32,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-09 07:25:32,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 237. [2024-11-09 07:25:32,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 213 states have (on average 1.0422535211267605) internal successors, (222), 216 states have internal predecessors, (222), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 07:25:32,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 242 transitions. [2024-11-09 07:25:32,602 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 242 transitions. Word has length 95 [2024-11-09 07:25:32,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:32,603 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 242 transitions. [2024-11-09 07:25:32,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 6.96) internal successors, (174), 25 states have internal predecessors, (174), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-09 07:25:32,603 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 242 transitions. [2024-11-09 07:25:32,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 07:25:32,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:32,605 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-11-09 07:25:32,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 07:25:32,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:32,806 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:25:32,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:32,807 INFO L85 PathProgramCache]: Analyzing trace with hash -3526758, now seen corresponding path program 2 times [2024-11-09 07:25:32,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:32,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604638186] [2024-11-09 07:25:32,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:32,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:25:32,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1202160605] [2024-11-09 07:25:32,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:25:32,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:32,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:32,884 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:32,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 07:25:32,989 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 07:25:32,989 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:25:32,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 07:25:32,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:33,146 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:25:33,147 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:25:33,519 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:25:33,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:33,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604638186] [2024-11-09 07:25:33,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:25:33,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202160605] [2024-11-09 07:25:33,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202160605] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:25:33,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1032033581] [2024-11-09 07:25:33,522 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 07:25:33,522 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:25:33,523 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:25:33,523 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:25:33,523 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:25:34,639 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 07:25:34,645 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:25:38,293 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7157#(and (exists ((|v_ULTIMATE.start_main_~y~0#1_98| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~y~0#1_98| |ULTIMATE.start_main_~x~0#1|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_98|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_98| |v_ULTIMATE.start_main_~y~0#1_98|)) (<= 1 |ULTIMATE.start_main_~k~0#1|))) (<= ~counter~0 50))' at error location [2024-11-09 07:25:38,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:25:38,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:25:38,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-09 07:25:38,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525035379] [2024-11-09 07:25:38,294 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 07:25:38,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:25:38,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:38,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:25:38,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=605, Unknown=0, NotChecked=0, Total=702 [2024-11-09 07:25:38,298 INFO L87 Difference]: Start difference. First operand 237 states and 242 transitions. Second operand has 12 states, 11 states have (on average 15.181818181818182) internal successors, (167), 12 states have internal predecessors, (167), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 07:25:38,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:38,894 INFO L93 Difference]: Finished difference Result 240 states and 245 transitions. [2024-11-09 07:25:38,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 07:25:38,895 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.181818181818182) internal successors, (167), 12 states have internal predecessors, (167), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 95 [2024-11-09 07:25:38,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:38,897 INFO L225 Difference]: With dead ends: 240 [2024-11-09 07:25:38,897 INFO L226 Difference]: Without dead ends: 239 [2024-11-09 07:25:38,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 232 SyntacticMatches, 26 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=145, Invalid=785, Unknown=0, NotChecked=0, Total=930 [2024-11-09 07:25:38,898 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 73 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:38,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 344 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:25:38,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-09 07:25:38,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2024-11-09 07:25:38,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 215 states have (on average 1.0186046511627906) internal successors, (219), 218 states have internal predecessors, (219), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 07:25:38,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 239 transitions. [2024-11-09 07:25:38,932 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 239 transitions. Word has length 95 [2024-11-09 07:25:38,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:38,932 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 239 transitions. [2024-11-09 07:25:38,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.181818181818182) internal successors, (167), 12 states have internal predecessors, (167), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 07:25:38,933 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 239 transitions. [2024-11-09 07:25:38,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-09 07:25:38,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:38,937 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2024-11-09 07:25:38,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 07:25:39,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:39,138 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:25:39,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:39,138 INFO L85 PathProgramCache]: Analyzing trace with hash -815942452, now seen corresponding path program 3 times [2024-11-09 07:25:39,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:39,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800623644] [2024-11-09 07:25:39,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:39,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:40,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 940 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 07:25:40,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:40,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800623644] [2024-11-09 07:25:40,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800623644] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:25:40,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115858853] [2024-11-09 07:25:40,344 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:25:40,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:40,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:40,347 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:40,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 07:25:40,479 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:25:40,479 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:25:40,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 07:25:40,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:40,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 1030 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:25:40,893 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:25:41,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 940 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 07:25:41,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115858853] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:25:41,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [226523433] [2024-11-09 07:25:41,935 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-09 07:25:41,935 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:25:41,936 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:25:41,936 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:25:41,936 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:25:42,934 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 07:25:42,941 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:25:51,798 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9146#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~y~0#1_113| Int)) (and (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |v_ULTIMATE.start_main_~y~0#1_113| (* |v_ULTIMATE.start_main_~y~0#1_113| |v_ULTIMATE.start_main_~y~0#1_113|))) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_113| |v_ULTIMATE.start_main_~y~0#1_113|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_113|))) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 51 ~counter~0) (<= ~counter~0 2147483647))' at error location [2024-11-09 07:25:51,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:25:51,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:25:51,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23, 24] total 49 [2024-11-09 07:25:51,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744085507] [2024-11-09 07:25:51,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:25:51,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-09 07:25:51,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:51,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-09 07:25:51,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=727, Invalid=3563, Unknown=0, NotChecked=0, Total=4290 [2024-11-09 07:25:51,805 INFO L87 Difference]: Start difference. First operand 239 states and 239 transitions. Second operand has 49 states, 49 states have (on average 8.326530612244898) internal successors, (408), 49 states have internal predecessors, (408), 20 states have call successors, (30), 11 states have call predecessors, (30), 11 states have return successors, (30), 20 states have call predecessors, (30), 20 states have call successors, (30) [2024-11-09 07:25:54,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:54,022 INFO L93 Difference]: Finished difference Result 523 states and 534 transitions. [2024-11-09 07:25:54,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-09 07:25:54,023 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 8.326530612244898) internal successors, (408), 49 states have internal predecessors, (408), 20 states have call successors, (30), 11 states have call predecessors, (30), 11 states have return successors, (30), 20 states have call predecessors, (30), 20 states have call successors, (30) Word has length 227 [2024-11-09 07:25:54,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:54,025 INFO L225 Difference]: With dead ends: 523 [2024-11-09 07:25:54,025 INFO L226 Difference]: Without dead ends: 512 [2024-11-09 07:25:54,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 746 GetRequests, 588 SyntacticMatches, 52 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7504 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=2662, Invalid=8894, Unknown=0, NotChecked=0, Total=11556 [2024-11-09 07:25:54,029 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 238 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:54,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 603 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:25:54,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-09 07:25:54,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 501. [2024-11-09 07:25:54,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 453 states have (on average 1.033112582781457) internal successors, (468), 456 states have internal predecessors, (468), 22 states have call successors, (22), 22 states have call predecessors, (22), 22 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 07:25:54,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 512 transitions. [2024-11-09 07:25:54,080 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 512 transitions. Word has length 227 [2024-11-09 07:25:54,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:54,081 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 512 transitions. [2024-11-09 07:25:54,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 8.326530612244898) internal successors, (408), 49 states have internal predecessors, (408), 20 states have call successors, (30), 11 states have call predecessors, (30), 11 states have return successors, (30), 20 states have call predecessors, (30), 20 states have call successors, (30) [2024-11-09 07:25:54,081 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 512 transitions. [2024-11-09 07:25:54,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-09 07:25:54,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:54,084 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2024-11-09 07:25:54,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 07:25:54,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:54,285 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:25:54,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:54,285 INFO L85 PathProgramCache]: Analyzing trace with hash -815941714, now seen corresponding path program 3 times [2024-11-09 07:25:54,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:54,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650328399] [2024-11-09 07:25:54,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:54,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:25:54,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1952367001] [2024-11-09 07:25:54,352 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:25:54,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:54,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:54,355 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:54,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 07:25:54,509 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:25:54,509 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:25:54,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 07:25:54,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:55,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 07:25:55,003 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:25:55,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 07:25:55,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:55,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650328399] [2024-11-09 07:25:55,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:25:55,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952367001] [2024-11-09 07:25:55,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952367001] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:25:55,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [438573140] [2024-11-09 07:25:55,985 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 07:25:55,986 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:25:55,986 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:25:55,986 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:25:55,986 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:25:56,914 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 07:25:56,920 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:26:04,607 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11829#(and (<= ~counter~0 50) (exists ((|v_ULTIMATE.start_main_~y~0#1_138| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_138| |v_ULTIMATE.start_main_~y~0#1_138|)) (<= 1 |ULTIMATE.start_main_~k~0#1|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_138|) (<= |v_ULTIMATE.start_main_~y~0#1_138| |ULTIMATE.start_main_~x~0#1|))))' at error location [2024-11-09 07:26:04,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:26:04,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:26:04,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-09 07:26:04,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335441539] [2024-11-09 07:26:04,608 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 07:26:04,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 07:26:04,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:26:04,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 07:26:04,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1265, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 07:26:04,612 INFO L87 Difference]: Start difference. First operand 501 states and 512 transitions. Second operand has 24 states, 23 states have (on average 17.17391304347826) internal successors, (395), 24 states have internal predecessors, (395), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 07:26:06,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:06,769 INFO L93 Difference]: Finished difference Result 504 states and 515 transitions. [2024-11-09 07:26:06,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 07:26:06,770 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 17.17391304347826) internal successors, (395), 24 states have internal predecessors, (395), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 227 [2024-11-09 07:26:06,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:06,773 INFO L225 Difference]: With dead ends: 504 [2024-11-09 07:26:06,773 INFO L226 Difference]: Without dead ends: 503 [2024-11-09 07:26:06,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 580 SyntacticMatches, 62 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1372 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=457, Invalid=1895, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 07:26:06,775 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 139 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:06,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1392 Invalid, 1569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 07:26:06,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-11-09 07:26:06,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2024-11-09 07:26:06,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 455 states have (on average 1.0087912087912088) internal successors, (459), 458 states have internal predecessors, (459), 22 states have call successors, (22), 22 states have call predecessors, (22), 22 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 07:26:06,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 503 transitions. [2024-11-09 07:26:06,819 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 503 transitions. Word has length 227 [2024-11-09 07:26:06,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:06,820 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 503 transitions. [2024-11-09 07:26:06,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 17.17391304347826) internal successors, (395), 24 states have internal predecessors, (395), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 07:26:06,821 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 503 transitions. [2024-11-09 07:26:06,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2024-11-09 07:26:06,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:06,834 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2024-11-09 07:26:06,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 07:26:07,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:07,039 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:26:07,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:07,039 INFO L85 PathProgramCache]: Analyzing trace with hash 709592820, now seen corresponding path program 4 times [2024-11-09 07:26:07,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:26:07,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807255419] [2024-11-09 07:26:07,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:07,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:26:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:10,509 INFO L134 CoverageAnalysis]: Checked inductivity of 5170 backedges. 0 proven. 4708 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-09 07:26:10,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:26:10,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807255419] [2024-11-09 07:26:10,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807255419] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:26:10,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770070009] [2024-11-09 07:26:10,511 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:26:10,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:10,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:26:10,513 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:26:10,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 07:26:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:10,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-09 07:26:10,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 5170 backedges. 0 proven. 5170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:26:11,494 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:26:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 5170 backedges. 0 proven. 4708 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-09 07:26:14,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770070009] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:26:14,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [779875925] [2024-11-09 07:26:14,581 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-09 07:26:14,582 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:26:14,582 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:26:14,582 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:26:14,582 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:26:15,446 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 07:26:15,452 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:26:35,815 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16086#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_165| Int)) (and (<= 1 |v_ULTIMATE.start_main_~y~0#1_165|) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |v_ULTIMATE.start_main_~y~0#1_165| (* |v_ULTIMATE.start_main_~y~0#1_165| |v_ULTIMATE.start_main_~y~0#1_165|))) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_165| |v_ULTIMATE.start_main_~y~0#1_165|)))) (<= 51 ~counter~0) (<= ~counter~0 2147483647))' at error location [2024-11-09 07:26:35,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:26:35,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:26:35,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 47, 48] total 97 [2024-11-09 07:26:35,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672483385] [2024-11-09 07:26:35,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:26:35,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2024-11-09 07:26:35,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:26:35,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2024-11-09 07:26:35,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2527, Invalid=10355, Unknown=0, NotChecked=0, Total=12882 [2024-11-09 07:26:35,826 INFO L87 Difference]: Start difference. First operand 503 states and 503 transitions. Second operand has 97 states, 97 states have (on average 9.030927835051546) internal successors, (876), 97 states have internal predecessors, (876), 44 states have call successors, (66), 23 states have call predecessors, (66), 23 states have return successors, (66), 44 states have call predecessors, (66), 44 states have call successors, (66) [2024-11-09 07:26:42,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:42,912 INFO L93 Difference]: Finished difference Result 1063 states and 1086 transitions. [2024-11-09 07:26:42,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2024-11-09 07:26:42,914 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 9.030927835051546) internal successors, (876), 97 states have internal predecessors, (876), 44 states have call successors, (66), 23 states have call predecessors, (66), 23 states have return successors, (66), 44 states have call predecessors, (66), 44 states have call successors, (66) Word has length 491 [2024-11-09 07:26:42,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:42,920 INFO L225 Difference]: With dead ends: 1063 [2024-11-09 07:26:42,920 INFO L226 Difference]: Without dead ends: 1052 [2024-11-09 07:26:42,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1610 GetRequests, 1296 SyntacticMatches, 112 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28120 ImplicationChecksByTransitivity, 29.5s TimeCoverageRelationStatistics Valid=10990, Invalid=30422, Unknown=0, NotChecked=0, Total=41412 [2024-11-09 07:26:42,933 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 749 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:42,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 880 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 07:26:42,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2024-11-09 07:26:43,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1029. [2024-11-09 07:26:43,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 933 states have (on average 1.0289389067524115) internal successors, (960), 936 states have internal predecessors, (960), 46 states have call successors, (46), 46 states have call predecessors, (46), 46 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 07:26:43,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1052 transitions. [2024-11-09 07:26:43,034 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1052 transitions. Word has length 491 [2024-11-09 07:26:43,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:43,035 INFO L471 AbstractCegarLoop]: Abstraction has 1029 states and 1052 transitions. [2024-11-09 07:26:43,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 9.030927835051546) internal successors, (876), 97 states have internal predecessors, (876), 44 states have call successors, (66), 23 states have call predecessors, (66), 23 states have return successors, (66), 44 states have call predecessors, (66), 44 states have call successors, (66) [2024-11-09 07:26:43,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1052 transitions. [2024-11-09 07:26:43,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2024-11-09 07:26:43,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:43,048 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1] [2024-11-09 07:26:43,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 07:26:43,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 07:26:43,252 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:26:43,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:43,253 INFO L85 PathProgramCache]: Analyzing trace with hash 709593558, now seen corresponding path program 4 times [2024-11-09 07:26:43,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:26:43,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504320767] [2024-11-09 07:26:43,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:43,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:26:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:26:43,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1351079754] [2024-11-09 07:26:43,427 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:26:43,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:43,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:26:43,429 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:26:43,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 07:26:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:43,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-09 07:26:43,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:44,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5214 backedges. 0 proven. 4752 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-09 07:26:44,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:26:47,329 INFO L134 CoverageAnalysis]: Checked inductivity of 5214 backedges. 0 proven. 4752 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-09 07:26:47,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:26:47,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504320767] [2024-11-09 07:26:47,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:26:47,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351079754] [2024-11-09 07:26:47,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351079754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:26:47,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2033415043] [2024-11-09 07:26:47,332 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 07:26:47,333 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:26:47,333 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:26:47,333 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:26:47,334 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:26:48,343 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 07:26:48,349 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:27:10,438 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21733#(and (<= ~counter~0 50) (exists ((|v_ULTIMATE.start_main_~y~0#1_214| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~y~0#1_214| |ULTIMATE.start_main_~x~0#1|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_214|) (<= 1 |ULTIMATE.start_main_~k~0#1|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_214| |v_ULTIMATE.start_main_~y~0#1_214|)))))' at error location [2024-11-09 07:27:10,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:27:10,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:27:10,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2024-11-09 07:27:10,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636882384] [2024-11-09 07:27:10,439 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 07:27:10,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-09 07:27:10,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:10,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-09 07:27:10,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=3233, Unknown=0, NotChecked=0, Total=3906 [2024-11-09 07:27:10,444 INFO L87 Difference]: Start difference. First operand 1029 states and 1052 transitions. Second operand has 48 states, 47 states have (on average 18.106382978723403) internal successors, (851), 48 states have internal predecessors, (851), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 07:27:17,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:17,124 INFO L93 Difference]: Finished difference Result 1032 states and 1055 transitions. [2024-11-09 07:27:17,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-09 07:27:17,125 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 18.106382978723403) internal successors, (851), 48 states have internal predecessors, (851), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 491 [2024-11-09 07:27:17,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:17,130 INFO L225 Difference]: With dead ends: 1032 [2024-11-09 07:27:17,130 INFO L226 Difference]: Without dead ends: 1031 [2024-11-09 07:27:17,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1493 GetRequests, 1276 SyntacticMatches, 134 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4690 ImplicationChecksByTransitivity, 26.9s TimeCoverageRelationStatistics Valid=1729, Invalid=5411, Unknown=0, NotChecked=0, Total=7140 [2024-11-09 07:27:17,133 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 271 mSDsluCounter, 5352 mSDsCounter, 0 mSdLazyCounter, 6252 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 5612 SdHoareTripleChecker+Invalid, 6277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 6252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:17,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 5612 Invalid, 6277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 6252 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 07:27:17,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-11-09 07:27:17,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1031. [2024-11-09 07:27:17,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 935 states have (on average 1.0042780748663103) internal successors, (939), 938 states have internal predecessors, (939), 46 states have call successors, (46), 46 states have call predecessors, (46), 46 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 07:27:17,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1031 transitions. [2024-11-09 07:27:17,224 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1031 transitions. Word has length 491 [2024-11-09 07:27:17,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:17,225 INFO L471 AbstractCegarLoop]: Abstraction has 1031 states and 1031 transitions. [2024-11-09 07:27:17,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 18.106382978723403) internal successors, (851), 48 states have internal predecessors, (851), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 07:27:17,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1031 transitions. [2024-11-09 07:27:17,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1020 [2024-11-09 07:27:17,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:17,238 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2024-11-09 07:27:17,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 07:27:17,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 07:27:17,439 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:27:17,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:17,440 INFO L85 PathProgramCache]: Analyzing trace with hash -489802940, now seen corresponding path program 5 times [2024-11-09 07:27:17,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:17,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790423376] [2024-11-09 07:27:17,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:17,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:28,360 INFO L134 CoverageAnalysis]: Checked inductivity of 22954 backedges. 0 proven. 20884 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2024-11-09 07:27:28,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:28,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790423376] [2024-11-09 07:27:28,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790423376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:27:28,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308943742] [2024-11-09 07:27:28,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:27:28,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:28,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:27:28,364 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:27:28,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 07:28:14,345 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2024-11-09 07:28:14,345 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:28:14,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-09 07:28:14,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:28:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 22954 backedges. 0 proven. 22954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:28:15,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:28:20,435 INFO L134 CoverageAnalysis]: Checked inductivity of 22954 backedges. 0 proven. 20884 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2024-11-09 07:28:20,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308943742] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:28:20,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1372263214] [2024-11-09 07:28:20,438 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-09 07:28:20,438 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:28:20,438 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:28:20,439 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:28:20,439 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:28:21,175 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 07:28:21,180 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:29:17,827 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '30438#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y~0#1_265| Int)) (and (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |v_ULTIMATE.start_main_~y~0#1_265| (* |v_ULTIMATE.start_main_~y~0#1_265| |v_ULTIMATE.start_main_~y~0#1_265|))) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_265| |v_ULTIMATE.start_main_~y~0#1_265|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_265|))) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 51 ~counter~0) (<= ~counter~0 2147483647))' at error location [2024-11-09 07:29:17,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:29:17,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:29:17,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 95, 96] total 105 [2024-11-09 07:29:17,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912534628] [2024-11-09 07:29:17,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:29:17,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2024-11-09 07:29:17,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:29:17,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2024-11-09 07:29:17,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2939, Invalid=11823, Unknown=0, NotChecked=0, Total=14762 [2024-11-09 07:29:17,836 INFO L87 Difference]: Start difference. First operand 1031 states and 1031 transitions. Second operand has 105 states, 105 states have (on average 9.457142857142857) internal successors, (993), 105 states have internal predecessors, (993), 49 states have call successors, (95), 47 states have call predecessors, (95), 47 states have return successors, (95), 49 states have call predecessors, (95), 49 states have call successors, (95) [2024-11-09 07:29:25,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:29:25,506 INFO L93 Difference]: Finished difference Result 1131 states and 1134 transitions. [2024-11-09 07:29:25,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2024-11-09 07:29:25,507 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 9.457142857142857) internal successors, (993), 105 states have internal predecessors, (993), 49 states have call successors, (95), 47 states have call predecessors, (95), 47 states have return successors, (95), 49 states have call predecessors, (95), 49 states have call successors, (95) Word has length 1019 [2024-11-09 07:29:25,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:29:25,513 INFO L225 Difference]: With dead ends: 1131 [2024-11-09 07:29:25,514 INFO L226 Difference]: Without dead ends: 1120 [2024-11-09 07:29:25,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3250 GetRequests, 2712 SyntacticMatches, 320 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44652 ImplicationChecksByTransitivity, 69.5s TimeCoverageRelationStatistics Valid=12938, Invalid=35242, Unknown=0, NotChecked=0, Total=48180 [2024-11-09 07:29:25,520 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 531 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:29:25,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 986 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 07:29:25,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2024-11-09 07:29:25,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1117. [2024-11-09 07:29:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 1013 states have (on average 1.0069101678183614) internal successors, (1020), 1016 states have internal predecessors, (1020), 50 states have call successors, (50), 50 states have call predecessors, (50), 50 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 07:29:25,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1120 transitions. [2024-11-09 07:29:25,605 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1120 transitions. Word has length 1019 [2024-11-09 07:29:25,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:29:25,608 INFO L471 AbstractCegarLoop]: Abstraction has 1117 states and 1120 transitions. [2024-11-09 07:29:25,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 9.457142857142857) internal successors, (993), 105 states have internal predecessors, (993), 49 states have call successors, (95), 47 states have call predecessors, (95), 47 states have return successors, (95), 49 states have call predecessors, (95), 49 states have call successors, (95) [2024-11-09 07:29:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1120 transitions. [2024-11-09 07:29:25,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1020 [2024-11-09 07:29:25,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:25,620 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1] [2024-11-09 07:29:25,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 07:29:25,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 07:29:25,821 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:29:25,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:25,822 INFO L85 PathProgramCache]: Analyzing trace with hash -489802202, now seen corresponding path program 5 times [2024-11-09 07:29:25,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:29:25,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346658709] [2024-11-09 07:29:25,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:25,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:29:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:29:26,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1601176450] [2024-11-09 07:29:26,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:29:26,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:29:26,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:29:26,326 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:29:26,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 07:30:20,720 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2024-11-09 07:30:20,721 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:30:20,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-09 07:30:20,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:30:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 23046 backedges. 0 proven. 20976 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2024-11-09 07:30:23,138 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:30:30,562 INFO L134 CoverageAnalysis]: Checked inductivity of 23046 backedges. 0 proven. 20976 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2024-11-09 07:30:30,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:30:30,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346658709] [2024-11-09 07:30:30,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:30:30,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601176450] [2024-11-09 07:30:30,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601176450] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:30:30,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1573300095] [2024-11-09 07:30:30,565 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 07:30:30,565 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:30:30,566 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:30:30,566 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:30:30,566 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:30:31,402 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 39 for LOIs [2024-11-09 07:30:31,408 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:31:44,092 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '39505#(and (<= ~counter~0 50) (exists ((|v_ULTIMATE.start_main_~y~0#1_362| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~y~0#1_362| |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= 1 |v_ULTIMATE.start_main_~y~0#1_362|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_362| |v_ULTIMATE.start_main_~y~0#1_362|)) (<= 1 |ULTIMATE.start_main_~k~0#1|))))' at error location [2024-11-09 07:31:44,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:31:44,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:31:44,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2024-11-09 07:31:44,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112921956] [2024-11-09 07:31:44,093 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 07:31:44,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-09 07:31:44,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:31:44,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-09 07:31:44,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2449, Invalid=9761, Unknown=0, NotChecked=0, Total=12210 [2024-11-09 07:31:44,100 INFO L87 Difference]: Start difference. First operand 1117 states and 1120 transitions. Second operand has 96 states, 95 states have (on average 18.557894736842105) internal successors, (1763), 96 states have internal predecessors, (1763), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-09 07:32:12,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:32:12,398 INFO L93 Difference]: Finished difference Result 2347 states and 2568 transitions. [2024-11-09 07:32:12,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-09 07:32:12,399 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 18.557894736842105) internal successors, (1763), 96 states have internal predecessors, (1763), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Word has length 1019 [2024-11-09 07:32:12,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:32:12,408 INFO L225 Difference]: With dead ends: 2347 [2024-11-09 07:32:12,408 INFO L226 Difference]: Without dead ends: 2345 [2024-11-09 07:32:12,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3101 GetRequests, 2668 SyntacticMatches, 278 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16942 ImplicationChecksByTransitivity, 96.1s TimeCoverageRelationStatistics Valid=6865, Invalid=17627, Unknown=0, NotChecked=0, Total=24492 [2024-11-09 07:32:12,415 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 8461 mSDsluCounter, 22380 mSDsCounter, 0 mSdLazyCounter, 25230 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8463 SdHoareTripleChecker+Valid, 22902 SdHoareTripleChecker+Invalid, 25324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 25230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:32:12,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8463 Valid, 22902 Invalid, 25324 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 25230 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-09 07:32:12,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2024-11-09 07:32:12,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 2001. [2024-11-09 07:32:12,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 1853 states have (on average 1.0259039395574743) internal successors, (1901), 1856 states have internal predecessors, (1901), 94 states have call successors, (94), 50 states have call predecessors, (94), 50 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-09 07:32:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2089 transitions. [2024-11-09 07:32:12,546 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2089 transitions. Word has length 1019 [2024-11-09 07:32:12,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:32:12,548 INFO L471 AbstractCegarLoop]: Abstraction has 2001 states and 2089 transitions. [2024-11-09 07:32:12,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 18.557894736842105) internal successors, (1763), 96 states have internal predecessors, (1763), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-09 07:32:12,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2089 transitions. [2024-11-09 07:32:12,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1112 [2024-11-09 07:32:12,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:32:12,561 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:32:12,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 07:32:12,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-09 07:32:12,762 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:32:12,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:32:12,763 INFO L85 PathProgramCache]: Analyzing trace with hash 793502720, now seen corresponding path program 1 times [2024-11-09 07:32:12,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:32:12,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141303254] [2024-11-09 07:32:12,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:32:12,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:32:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:32:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 27150 backedges. 0 proven. 24700 refuted. 0 times theorem prover too weak. 2450 trivial. 0 not checked. [2024-11-09 07:32:27,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:32:27,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141303254] [2024-11-09 07:32:27,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141303254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:32:27,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928093409] [2024-11-09 07:32:27,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:32:27,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:32:27,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:32:27,650 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:32:27,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 07:32:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:32:28,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 104 conjuncts are in the unsatisfiable core [2024-11-09 07:32:28,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:32:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 27150 backedges. 24700 proven. 0 refuted. 0 times theorem prover too weak. 2450 trivial. 0 not checked. [2024-11-09 07:32:47,275 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:32:47,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928093409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:32:47,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:32:47,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [103] total 205 [2024-11-09 07:32:47,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673896641] [2024-11-09 07:32:47,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:32:47,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2024-11-09 07:32:47,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:32:47,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2024-11-09 07:32:47,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9537, Invalid=32693, Unknown=0, NotChecked=0, Total=42230 [2024-11-09 07:32:47,285 INFO L87 Difference]: Start difference. First operand 2001 states and 2089 transitions. Second operand has 104 states, 103 states have (on average 9.339805825242719) internal successors, (962), 104 states have internal predecessors, (962), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 07:32:54,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:32:54,893 INFO L93 Difference]: Finished difference Result 2001 states and 2089 transitions. [2024-11-09 07:32:54,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2024-11-09 07:32:54,893 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 103 states have (on average 9.339805825242719) internal successors, (962), 104 states have internal predecessors, (962), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 1111 [2024-11-09 07:32:54,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:32:54,902 INFO L225 Difference]: With dead ends: 2001 [2024-11-09 07:32:54,902 INFO L226 Difference]: Without dead ends: 1991 [2024-11-09 07:32:54,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1262 GetRequests, 1009 SyntacticMatches, 0 SemanticMatches, 253 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10937 ImplicationChecksByTransitivity, 24.6s TimeCoverageRelationStatistics Valid=17228, Invalid=47542, Unknown=0, NotChecked=0, Total=64770 [2024-11-09 07:32:54,910 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 83 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 3836 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 3887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 3836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:32:54,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 2196 Invalid, 3887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 3836 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 07:32:54,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2024-11-09 07:32:55,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1991. [2024-11-09 07:32:55,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1845 states have (on average 1.0010840108401085) internal successors, (1847), 1846 states have internal predecessors, (1847), 94 states have call successors, (94), 50 states have call predecessors, (94), 50 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-09 07:32:55,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2035 transitions. [2024-11-09 07:32:55,054 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2035 transitions. Word has length 1111 [2024-11-09 07:32:55,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:32:55,055 INFO L471 AbstractCegarLoop]: Abstraction has 1991 states and 2035 transitions. [2024-11-09 07:32:55,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 103 states have (on average 9.339805825242719) internal successors, (962), 104 states have internal predecessors, (962), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 07:32:55,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2035 transitions. [2024-11-09 07:32:55,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2076 [2024-11-09 07:32:55,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:32:55,127 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2024-11-09 07:32:55,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 07:32:55,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 07:32:55,328 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:32:55,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:32:55,329 INFO L85 PathProgramCache]: Analyzing trace with hash -2033210396, now seen corresponding path program 6 times [2024-11-09 07:32:55,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:32:55,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112963488] [2024-11-09 07:32:55,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:32:55,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:32:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:33:52,015 INFO L134 CoverageAnalysis]: Checked inductivity of 96538 backedges. 87332 proven. 464 refuted. 0 times theorem prover too weak. 8742 trivial. 0 not checked. [2024-11-09 07:33:52,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:33:52,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112963488] [2024-11-09 07:33:52,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112963488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:33:52,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020717813] [2024-11-09 07:33:52,017 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:33:52,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:33:52,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:33:52,019 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:33:52,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 07:33:52,871 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:33:52,871 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:33:52,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 3236 conjuncts, 103 conjuncts are in the unsatisfiable core [2024-11-09 07:33:52,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:33:54,959 INFO L134 CoverageAnalysis]: Checked inductivity of 96538 backedges. 75676 proven. 50 refuted. 0 times theorem prover too weak. 20812 trivial. 0 not checked. [2024-11-09 07:33:54,960 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:34:01,877 INFO L134 CoverageAnalysis]: Checked inductivity of 96538 backedges. 68826 proven. 50 refuted. 0 times theorem prover too weak. 27662 trivial. 0 not checked. [2024-11-09 07:34:01,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020717813] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:34:01,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [85135109] [2024-11-09 07:34:01,880 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2024-11-09 07:34:01,881 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:34:01,881 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:34:01,881 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:34:01,881 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:34:02,919 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 34 for LOIs [2024-11-09 07:34:02,923 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:37:03,092 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '65379#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 51 ~counter~0) (<= ~counter~0 2147483647) (exists ((|v_ULTIMATE.start_main_~y~0#1_511| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_511| |v_ULTIMATE.start_main_~y~0#1_511|)) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |v_ULTIMATE.start_main_~y~0#1_511| (* |v_ULTIMATE.start_main_~y~0#1_511| |v_ULTIMATE.start_main_~y~0#1_511|))) (<= 1 |v_ULTIMATE.start_main_~y~0#1_511|))))' at error location [2024-11-09 07:37:03,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:37:03,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:37:03,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 103, 104] total 193 [2024-11-09 07:37:03,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670398832] [2024-11-09 07:37:03,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:37:03,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2024-11-09 07:37:03,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:37:03,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2024-11-09 07:37:03,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9347, Invalid=34543, Unknown=0, NotChecked=0, Total=43890 [2024-11-09 07:37:03,102 INFO L87 Difference]: Start difference. First operand 1991 states and 2035 transitions. Second operand has 193 states, 193 states have (on average 9.601036269430052) internal successors, (1853), 193 states have internal predecessors, (1853), 94 states have call successors, (145), 52 states have call predecessors, (145), 52 states have return successors, (145), 94 states have call predecessors, (145), 94 states have call successors, (145) [2024-11-09 07:37:12,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:37:12,966 INFO L93 Difference]: Finished difference Result 1993 states and 2036 transitions. [2024-11-09 07:37:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2024-11-09 07:37:12,967 INFO L78 Accepts]: Start accepts. Automaton has has 193 states, 193 states have (on average 9.601036269430052) internal successors, (1853), 193 states have internal predecessors, (1853), 94 states have call successors, (145), 52 states have call predecessors, (145), 52 states have return successors, (145), 94 states have call predecessors, (145), 94 states have call successors, (145) Word has length 2075 [2024-11-09 07:37:12,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:37:12,968 INFO L225 Difference]: With dead ends: 1993 [2024-11-09 07:37:12,968 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 07:37:12,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6515 GetRequests, 5633 SyntacticMatches, 573 SemanticMatches, 309 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138896 ImplicationChecksByTransitivity, 205.0s TimeCoverageRelationStatistics Valid=19853, Invalid=76557, Unknown=0, NotChecked=0, Total=96410 [2024-11-09 07:37:12,978 INFO L432 NwaCegarLoop]: 850 mSDtfsCounter, 155 mSDsluCounter, 11570 mSDsCounter, 0 mSdLazyCounter, 4269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 12420 SdHoareTripleChecker+Invalid, 4269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:37:12,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 12420 Invalid, 4269 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4269 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 07:37:12,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 07:37:12,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 07:37:12,979 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) [2024-11-09 07:37:12,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 07:37:12,980 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2075 [2024-11-09 07:37:12,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:37:12,980 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 07:37:12,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 193 states have (on average 9.601036269430052) internal successors, (1853), 193 states have internal predecessors, (1853), 94 states have call successors, (145), 52 states have call predecessors, (145), 52 states have return successors, (145), 94 states have call predecessors, (145), 94 states have call successors, (145) [2024-11-09 07:37:12,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 07:37:12,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 07:37:12,983 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2024-11-09 07:37:12,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2024-11-09 07:37:12,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2024-11-09 07:37:12,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2024-11-09 07:37:12,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2024-11-09 07:37:12,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2024-11-09 07:37:12,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2024-11-09 07:37:12,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2024-11-09 07:37:12,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2024-11-09 07:37:12,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2024-11-09 07:37:12,985 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2024-11-09 07:37:12,985 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2024-11-09 07:37:12,985 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2024-11-09 07:37:12,985 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2024-11-09 07:37:12,985 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2024-11-09 07:37:12,985 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2024-11-09 07:37:12,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2024-11-09 07:37:12,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2024-11-09 07:37:12,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2024-11-09 07:37:12,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2024-11-09 07:37:12,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2024-11-09 07:37:12,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2024-11-09 07:37:12,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2024-11-09 07:37:12,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2024-11-09 07:37:13,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-09 07:37:13,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 07:37:13,190 INFO L407 BasicCegarLoop]: Path program histogram: [6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:37:13,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 07:37:21,026 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:37:21,074 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:37:21,075 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:37:21,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:37:21 BoogieIcfgContainer [2024-11-09 07:37:21,080 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:37:21,081 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:37:21,081 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:37:21,081 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:37:21,081 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:24:25" (3/4) ... [2024-11-09 07:37:21,084 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 07:37:21,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 07:37:21,093 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 07:37:21,093 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 07:37:21,094 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 07:37:21,094 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 07:37:21,179 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 07:37:21,180 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 07:37:21,180 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:37:21,181 INFO L158 Benchmark]: Toolchain (without parser) took 776919.23ms. Allocated memory was 178.3MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 149.1MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 407.1MB. Max. memory is 16.1GB. [2024-11-09 07:37:21,181 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 123.7MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:37:21,182 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.37ms. Allocated memory is still 178.3MB. Free memory was 148.8MB in the beginning and 139.7MB in the end (delta: 9.2MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2024-11-09 07:37:21,182 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.29ms. Allocated memory is still 178.3MB. Free memory was 139.7MB in the beginning and 138.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:37:21,183 INFO L158 Benchmark]: Boogie Preprocessor took 43.72ms. Allocated memory is still 178.3MB. Free memory was 138.5MB in the beginning and 137.5MB in the end (delta: 937.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:37:21,183 INFO L158 Benchmark]: RCFGBuilder took 647.56ms. Allocated memory is still 178.3MB. Free memory was 137.5MB in the beginning and 137.4MB in the end (delta: 73.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 07:37:21,183 INFO L158 Benchmark]: TraceAbstraction took 775694.93ms. Allocated memory was 178.3MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 136.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-11-09 07:37:21,184 INFO L158 Benchmark]: Witness Printer took 99.79ms. Allocated memory is still 1.8GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 07:37:21,185 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 123.7MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.37ms. Allocated memory is still 178.3MB. Free memory was 148.8MB in the beginning and 139.7MB in the end (delta: 9.2MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.29ms. Allocated memory is still 178.3MB. Free memory was 139.7MB in the beginning and 138.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.72ms. Allocated memory is still 178.3MB. Free memory was 138.5MB in the beginning and 137.5MB in the end (delta: 937.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 647.56ms. Allocated memory is still 178.3MB. Free memory was 137.5MB in the beginning and 137.4MB in the end (delta: 73.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 775694.93ms. Allocated memory was 178.3MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 136.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 99.79ms. Allocated memory is still 1.8GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: 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, 58 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 767.7s, OverallIterations: 28, TraceHistogramMax: 95, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.2s, AutomataDifference: 80.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11421 SdHoareTripleChecker+Valid, 23.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11403 mSDsluCounter, 49330 SdHoareTripleChecker+Invalid, 19.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46312 mSDsCounter, 374 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44513 IncrementalHoareTripleChecker+Invalid, 44887 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 374 mSolverCounterUnsat, 3018 mSDtfsCounter, 44513 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19905 GetRequests, 16663 SyntacticMatches, 1611 SemanticMatches, 1631 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 257048 ImplicationChecksByTransitivity, 514.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2001occurred in iteration=26, InterpolantAutomatonStates: 937, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 28 MinimizatonAttempts, 516 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 104.4s SatisfiabilityAnalysisTime, 173.1s InterpolantComputationTime, 14361 NumberOfCodeBlocks, 14317 NumberOfCodeBlocksAsserted, 150 NumberOfCheckSat, 18372 ConstructedInterpolants, 2 QuantifiedInterpolants, 69695 SizeOfPredicates, 279 NumberOfNonLiveVariables, 11428 ConjunctsInSsa, 599 ConjunctsInUnsatCore, 54 InterpolantComputations, 15 PerfectInterpolantSequences, 329391/491117 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: OVERALL_TIME: 1.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 28, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 96, TOOLS_POST_TIME: 0.9s, TOOLS_POST_CALL_APPLICATIONS: 11, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 10, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 117, TOOLS_QUANTIFIERELIM_TIME: 1.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 142, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 10, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 28, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.9s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.9s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 10, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 895, DAG_COMPRESSION_RETAINED_NODES: 98, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold - ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) RESULT: Ultimate proved your program to be correct! [2024-11-09 07:37:21,406 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-09 07:37:21,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1663d64-beac-4ebf-9305-e85e85a80b08/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE