./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/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_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/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_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/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 aefc568e9b7c922872a103ac050823e614044aea4bac2f22f2c586f3247176b4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:15:56,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:15:57,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 07:15:57,057 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:15:57,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:15:57,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:15:57,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:15:57,092 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:15:57,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:15:57,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:15:57,095 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:15:57,096 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:15:57,096 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:15:57,100 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:15:57,100 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:15:57,101 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:15:57,101 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:15:57,102 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:15:57,102 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:15:57,103 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:15:57,103 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:15:57,104 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:15:57,105 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:15:57,105 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:15:57,106 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:15:57,106 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:15:57,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:15:57,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:15:57,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:15:57,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:15:57,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:15:57,109 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:15:57,109 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:15:57,110 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:15:57,110 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:15:57,111 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:15:57,111 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:15:57,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:15:57,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:15:57,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:15:57,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:15:57,114 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:15:57,114 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:15:57,114 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:15:57,115 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:15:57,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:15:57,115 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:15:57,116 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:15:57,116 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:15:57,117 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_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aefc568e9b7c922872a103ac050823e614044aea4bac2f22f2c586f3247176b4 [2024-11-09 07:15:57,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:15:57,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:15:57,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:15:57,477 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:15:57,477 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:15:57,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c Unable to find full path for "g++" [2024-11-09 07:15:59,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:16:00,096 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:16:00,097 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c [2024-11-09 07:16:00,108 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/data/bb9e4590b/b41aa09103d548d897eef0639f4d6fef/FLAG7a4b403ea [2024-11-09 07:16:00,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/data/bb9e4590b/b41aa09103d548d897eef0639f4d6fef [2024-11-09 07:16:00,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:16:00,129 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:16:00,130 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:16:00,130 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:16:00,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:16:00,142 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:16:00" (1/1) ... [2024-11-09 07:16:00,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f7e904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00, skipping insertion in model container [2024-11-09 07:16:00,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:16:00" (1/1) ... [2024-11-09 07:16:00,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:16:00,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:16:00,419 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:16:00,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:16:00,464 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:16:00,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00 WrapperNode [2024-11-09 07:16:00,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:16:00,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:16:00,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:16:00,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:16:00,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00" (1/1) ... [2024-11-09 07:16:00,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00" (1/1) ... [2024-11-09 07:16:00,517 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2024-11-09 07:16:00,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:16:00,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:16:00,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:16:00,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:16:00,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00" (1/1) ... [2024-11-09 07:16:00,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00" (1/1) ... [2024-11-09 07:16:00,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00" (1/1) ... [2024-11-09 07:16:00,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00" (1/1) ... [2024-11-09 07:16:00,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00" (1/1) ... [2024-11-09 07:16:00,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00" (1/1) ... [2024-11-09 07:16:00,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00" (1/1) ... [2024-11-09 07:16:00,564 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00" (1/1) ... [2024-11-09 07:16:00,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:16:00,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:16:00,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:16:00,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:16:00,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00" (1/1) ... [2024-11-09 07:16:00,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:16:00,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:00,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:16:00,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:16:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:16:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:16:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:16:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:16:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 07:16:00,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 07:16:00,756 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:16:00,759 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:16:01,428 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-11-09 07:16:01,429 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:16:01,488 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:16:01,488 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 07:16:01,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:16:01 BoogieIcfgContainer [2024-11-09 07:16:01,489 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:16:01,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:16:01,492 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:16:01,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:16:01,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:16:00" (1/3) ... [2024-11-09 07:16:01,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190e83a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:16:01, skipping insertion in model container [2024-11-09 07:16:01,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:00" (2/3) ... [2024-11-09 07:16:01,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190e83a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:16:01, skipping insertion in model container [2024-11-09 07:16:01,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:16:01" (3/3) ... [2024-11-09 07:16:01,500 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_unwindbound50.c [2024-11-09 07:16:01,524 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:16:01,524 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-11-09 07:16:01,595 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:16:01,602 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;@25fbe14e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:16:01,602 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-09 07:16:01,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 38 states have (on average 1.9210526315789473) internal successors, (73), 66 states have internal predecessors, (73), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 07:16:01,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 07:16:01,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:01,615 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 07:16:01,615 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:16:01,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:01,622 INFO L85 PathProgramCache]: Analyzing trace with hash 176280, now seen corresponding path program 1 times [2024-11-09 07:16:01,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:01,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311741912] [2024-11-09 07:16:01,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:01,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:02,003 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 07:16:02,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:02,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311741912] [2024-11-09 07:16:02,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311741912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:02,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:16:02,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:16:02,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798918947] [2024-11-09 07:16:02,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:02,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:16:02,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:02,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:16:02,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:16:02,064 INFO L87 Difference]: Start difference. First operand has 75 states, 38 states have (on average 1.9210526315789473) internal successors, (73), 66 states have internal predecessors, (73), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) 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 07:16:02,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:02,217 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2024-11-09 07:16:02,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:16:02,221 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 07:16:02,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:02,232 INFO L225 Difference]: With dead ends: 133 [2024-11-09 07:16:02,233 INFO L226 Difference]: Without dead ends: 75 [2024-11-09 07:16:02,238 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 07:16:02,250 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 4 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:02,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 230 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:16:02,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-09 07:16:02,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-09 07:16:02,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 41 states have (on average 1.7804878048780488) internal successors, (73), 68 states have internal predecessors, (73), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 07:16:02,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2024-11-09 07:16:02,321 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 3 [2024-11-09 07:16:02,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:02,323 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2024-11-09 07:16:02,324 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 07:16:02,324 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2024-11-09 07:16:02,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 07:16:02,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:02,327 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:02,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:16:02,328 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:16:02,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:02,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1635513769, now seen corresponding path program 1 times [2024-11-09 07:16:02,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:02,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978590684] [2024-11-09 07:16:02,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:02,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:16:02,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029120742] [2024-11-09 07:16:02,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:02,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:02,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:02,389 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:02,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:16:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:02,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:16:02,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:02,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:16:02,693 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:16:02,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:02,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978590684] [2024-11-09 07:16:02,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:16:02,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029120742] [2024-11-09 07:16:02,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029120742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:02,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:16:02,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:16:02,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641598600] [2024-11-09 07:16:02,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:02,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:16:02,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:02,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:16:02,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:16:02,701 INFO L87 Difference]: Start difference. First operand 75 states and 83 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:16:02,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:02,864 INFO L93 Difference]: Finished difference Result 162 states and 186 transitions. [2024-11-09 07:16:02,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:16:02,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 12 [2024-11-09 07:16:02,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:02,868 INFO L225 Difference]: With dead ends: 162 [2024-11-09 07:16:02,868 INFO L226 Difference]: Without dead ends: 110 [2024-11-09 07:16:02,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:16:02,871 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 29 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:02,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 114 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:16:02,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-09 07:16:02,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 98. [2024-11-09 07:16:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 86 states have internal predecessors, (101), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 07:16:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 121 transitions. [2024-11-09 07:16:02,891 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 121 transitions. Word has length 12 [2024-11-09 07:16:02,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:02,893 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 121 transitions. [2024-11-09 07:16:02,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:16:02,894 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 121 transitions. [2024-11-09 07:16:02,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 07:16:02,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:02,895 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:02,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:16:03,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:03,100 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:16:03,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:03,102 INFO L85 PathProgramCache]: Analyzing trace with hash 273312529, now seen corresponding path program 1 times [2024-11-09 07:16:03,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:03,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87870675] [2024-11-09 07:16:03,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:03,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:03,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:03,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87870675] [2024-11-09 07:16:03,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87870675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:03,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:16:03,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:16:03,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475548277] [2024-11-09 07:16:03,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:03,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:16:03,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:03,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:16:03,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:16:03,388 INFO L87 Difference]: Start difference. First operand 98 states and 121 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:03,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:03,499 INFO L93 Difference]: Finished difference Result 126 states and 157 transitions. [2024-11-09 07:16:03,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:16:03,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2024-11-09 07:16:03,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:03,502 INFO L225 Difference]: With dead ends: 126 [2024-11-09 07:16:03,502 INFO L226 Difference]: Without dead ends: 124 [2024-11-09 07:16:03,502 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 07:16:03,504 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 36 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:03,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 97 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:16:03,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-09 07:16:03,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 111. [2024-11-09 07:16:03,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 71 states have (on average 1.704225352112676) internal successors, (121), 97 states have internal predecessors, (121), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:16:03,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 145 transitions. [2024-11-09 07:16:03,523 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 145 transitions. Word has length 18 [2024-11-09 07:16:03,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:03,524 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 145 transitions. [2024-11-09 07:16:03,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:03,524 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 145 transitions. [2024-11-09 07:16:03,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 07:16:03,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:03,526 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:03,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:16:03,526 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:16:03,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:03,527 INFO L85 PathProgramCache]: Analyzing trace with hash -117247663, now seen corresponding path program 1 times [2024-11-09 07:16:03,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:03,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849164753] [2024-11-09 07:16:03,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:03,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:03,819 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:03,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:03,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849164753] [2024-11-09 07:16:03,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849164753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:03,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:16:03,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:16:03,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522684683] [2024-11-09 07:16:03,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:03,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:16:03,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:03,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:16:03,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:16:03,826 INFO L87 Difference]: Start difference. First operand 111 states and 145 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:04,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:04,012 INFO L93 Difference]: Finished difference Result 133 states and 158 transitions. [2024-11-09 07:16:04,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:16:04,013 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2024-11-09 07:16:04,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:04,015 INFO L225 Difference]: With dead ends: 133 [2024-11-09 07:16:04,015 INFO L226 Difference]: Without dead ends: 132 [2024-11-09 07:16:04,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:16:04,020 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 45 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:04,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 353 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:16:04,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-09 07:16:04,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 113. [2024-11-09 07:16:04,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 72 states have (on average 1.6805555555555556) internal successors, (121), 98 states have internal predecessors, (121), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:16:04,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 145 transitions. [2024-11-09 07:16:04,039 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 145 transitions. Word has length 19 [2024-11-09 07:16:04,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:04,040 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 145 transitions. [2024-11-09 07:16:04,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:04,041 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 145 transitions. [2024-11-09 07:16:04,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 07:16:04,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:04,042 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:04,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:16:04,043 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:16:04,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:04,044 INFO L85 PathProgramCache]: Analyzing trace with hash -117246125, now seen corresponding path program 1 times [2024-11-09 07:16:04,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:04,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392235301] [2024-11-09 07:16:04,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:04,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:04,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:04,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392235301] [2024-11-09 07:16:04,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392235301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:04,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:16:04,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:16:04,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156640254] [2024-11-09 07:16:04,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:04,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:16:04,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:04,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:16:04,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:16:04,180 INFO L87 Difference]: Start difference. First operand 113 states and 145 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:04,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:04,265 INFO L93 Difference]: Finished difference Result 123 states and 152 transitions. [2024-11-09 07:16:04,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:16:04,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2024-11-09 07:16:04,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:04,267 INFO L225 Difference]: With dead ends: 123 [2024-11-09 07:16:04,268 INFO L226 Difference]: Without dead ends: 122 [2024-11-09 07:16:04,269 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 07:16:04,270 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 21 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:04,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 119 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:16:04,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-09 07:16:04,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 113. [2024-11-09 07:16:04,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 72 states have (on average 1.6666666666666667) internal successors, (120), 98 states have internal predecessors, (120), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:16:04,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 144 transitions. [2024-11-09 07:16:04,299 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 144 transitions. Word has length 19 [2024-11-09 07:16:04,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:04,303 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 144 transitions. [2024-11-09 07:16:04,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:04,304 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 144 transitions. [2024-11-09 07:16:04,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 07:16:04,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:04,305 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:04,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:16:04,305 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:16:04,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:04,306 INFO L85 PathProgramCache]: Analyzing trace with hash 660289825, now seen corresponding path program 1 times [2024-11-09 07:16:04,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:04,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685711286] [2024-11-09 07:16:04,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:04,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:04,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:04,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685711286] [2024-11-09 07:16:04,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685711286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:04,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:16:04,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:16:04,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779063651] [2024-11-09 07:16:04,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:04,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:16:04,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:04,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:16:04,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:16:04,527 INFO L87 Difference]: Start difference. First operand 113 states and 144 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:04,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:04,664 INFO L93 Difference]: Finished difference Result 129 states and 157 transitions. [2024-11-09 07:16:04,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:16:04,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2024-11-09 07:16:04,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:04,666 INFO L225 Difference]: With dead ends: 129 [2024-11-09 07:16:04,666 INFO L226 Difference]: Without dead ends: 120 [2024-11-09 07:16:04,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:16:04,668 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 19 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:04,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 332 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:16:04,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-09 07:16:04,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 115. [2024-11-09 07:16:04,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 73 states have (on average 1.63013698630137) internal successors, (119), 99 states have internal predecessors, (119), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:16:04,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 143 transitions. [2024-11-09 07:16:04,699 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 143 transitions. Word has length 20 [2024-11-09 07:16:04,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:04,700 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 143 transitions. [2024-11-09 07:16:04,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:04,700 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 143 transitions. [2024-11-09 07:16:04,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 07:16:04,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:04,705 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:04,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:16:04,706 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:16:04,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:04,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1116635197, now seen corresponding path program 1 times [2024-11-09 07:16:04,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:04,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076178800] [2024-11-09 07:16:04,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:04,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:16:04,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1798042794] [2024-11-09 07:16:04,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:04,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:04,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:04,737 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:04,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:16:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:04,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:16:04,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:04,855 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:04,856 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:16:04,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:04,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076178800] [2024-11-09 07:16:04,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:16:04,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798042794] [2024-11-09 07:16:04,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798042794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:04,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:16:04,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:16:04,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287517988] [2024-11-09 07:16:04,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:04,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:16:04,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:04,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:16:04,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:16:04,859 INFO L87 Difference]: Start difference. First operand 115 states and 143 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:05,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:05,054 INFO L93 Difference]: Finished difference Result 155 states and 193 transitions. [2024-11-09 07:16:05,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:16:05,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2024-11-09 07:16:05,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:05,056 INFO L225 Difference]: With dead ends: 155 [2024-11-09 07:16:05,056 INFO L226 Difference]: Without dead ends: 151 [2024-11-09 07:16:05,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 07:16:05,058 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 44 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:05,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 95 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:16:05,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-09 07:16:05,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 135. [2024-11-09 07:16:05,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 91 states have (on average 1.6043956043956045) internal successors, (146), 117 states have internal predecessors, (146), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 07:16:05,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 174 transitions. [2024-11-09 07:16:05,073 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 174 transitions. Word has length 22 [2024-11-09 07:16:05,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:05,073 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 174 transitions. [2024-11-09 07:16:05,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:05,074 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 174 transitions. [2024-11-09 07:16:05,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 07:16:05,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:05,075 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:05,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 07:16:05,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:05,280 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:16:05,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:05,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1164049271, now seen corresponding path program 1 times [2024-11-09 07:16:05,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:05,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360703748] [2024-11-09 07:16:05,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:05,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:05,426 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:05,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:05,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360703748] [2024-11-09 07:16:05,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360703748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:16:05,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260337451] [2024-11-09 07:16:05,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:05,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:05,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:05,430 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:05,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:16:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:05,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:16:05,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:05,615 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:05,615 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:16:05,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260337451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:05,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:16:05,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-09 07:16:05,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982423624] [2024-11-09 07:16:05,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:05,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:16:05,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:05,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:16:05,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:16:05,619 INFO L87 Difference]: Start difference. First operand 135 states and 174 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:05,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:05,683 INFO L93 Difference]: Finished difference Result 139 states and 175 transitions. [2024-11-09 07:16:05,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:16:05,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-11-09 07:16:05,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:05,687 INFO L225 Difference]: With dead ends: 139 [2024-11-09 07:16:05,687 INFO L226 Difference]: Without dead ends: 138 [2024-11-09 07:16:05,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 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 07:16:05,689 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 16 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:05,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 252 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:16:05,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-09 07:16:05,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2024-11-09 07:16:05,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 92 states have (on average 1.5869565217391304) internal successors, (146), 117 states have internal predecessors, (146), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 07:16:05,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 174 transitions. [2024-11-09 07:16:05,721 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 174 transitions. Word has length 23 [2024-11-09 07:16:05,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:05,722 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 174 transitions. [2024-11-09 07:16:05,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:05,722 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 174 transitions. [2024-11-09 07:16:05,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 07:16:05,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:05,723 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:05,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 07:16:05,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 07:16:05,925 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:16:05,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:05,926 INFO L85 PathProgramCache]: Analyzing trace with hash 655402597, now seen corresponding path program 1 times [2024-11-09 07:16:05,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:05,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901198640] [2024-11-09 07:16:05,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:05,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:06,038 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:06,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:06,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901198640] [2024-11-09 07:16:06,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901198640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:06,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:16:06,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:16:06,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603623525] [2024-11-09 07:16:06,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:06,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:16:06,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:06,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:16:06,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:16:06,045 INFO L87 Difference]: Start difference. First operand 136 states and 174 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:07,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:07,233 INFO L93 Difference]: Finished difference Result 163 states and 201 transitions. [2024-11-09 07:16:07,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:16:07,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-11-09 07:16:07,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:07,235 INFO L225 Difference]: With dead ends: 163 [2024-11-09 07:16:07,235 INFO L226 Difference]: Without dead ends: 162 [2024-11-09 07:16:07,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:16:07,237 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 110 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:07,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 102 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 07:16:07,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-09 07:16:07,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 143. [2024-11-09 07:16:07,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 99 states have (on average 1.5656565656565657) internal successors, (155), 124 states have internal predecessors, (155), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 07:16:07,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 183 transitions. [2024-11-09 07:16:07,273 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 183 transitions. Word has length 24 [2024-11-09 07:16:07,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:07,274 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 183 transitions. [2024-11-09 07:16:07,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:07,274 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 183 transitions. [2024-11-09 07:16:07,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 07:16:07,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:07,277 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:07,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:16:07,277 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:16:07,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:07,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1725789080, now seen corresponding path program 1 times [2024-11-09 07:16:07,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:07,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480328600] [2024-11-09 07:16:07,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:07,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:07,420 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:07,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:07,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480328600] [2024-11-09 07:16:07,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480328600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:16:07,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893339651] [2024-11-09 07:16:07,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:07,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:07,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:07,424 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:07,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:16:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:07,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:16:07,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:07,679 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:07,679 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:16:07,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893339651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:07,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:16:07,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-09 07:16:07,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898924824] [2024-11-09 07:16:07,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:07,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:16:07,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:07,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:16:07,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:16:07,681 INFO L87 Difference]: Start difference. First operand 143 states and 183 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:07,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:07,797 INFO L93 Difference]: Finished difference Result 148 states and 188 transitions. [2024-11-09 07:16:07,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:16:07,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-11-09 07:16:07,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:07,800 INFO L225 Difference]: With dead ends: 148 [2024-11-09 07:16:07,800 INFO L226 Difference]: Without dead ends: 147 [2024-11-09 07:16:07,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 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 07:16:07,801 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 14 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:07,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 251 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:16:07,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-09 07:16:07,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 142. [2024-11-09 07:16:07,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 99 states have (on average 1.5555555555555556) internal successors, (154), 123 states have internal predecessors, (154), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 07:16:07,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 182 transitions. [2024-11-09 07:16:07,831 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 182 transitions. Word has length 24 [2024-11-09 07:16:07,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:07,831 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 182 transitions. [2024-11-09 07:16:07,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:07,832 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 182 transitions. [2024-11-09 07:16:07,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 07:16:07,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:07,834 INFO L215 NwaCegarLoop]: trace histogram [3, 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 07:16:07,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 07:16:08,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 07:16:08,035 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:16:08,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:08,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1157355878, now seen corresponding path program 1 times [2024-11-09 07:16:08,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:08,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888519938] [2024-11-09 07:16:08,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:08,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:16:08,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1689914828] [2024-11-09 07:16:08,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:08,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:08,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:08,083 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:08,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:16:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:08,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:16:08,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:08,302 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:08,302 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:16:08,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:08,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888519938] [2024-11-09 07:16:08,303 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:16:08,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689914828] [2024-11-09 07:16:08,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689914828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:08,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:16:08,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:16:08,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320229472] [2024-11-09 07:16:08,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:08,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:16:08,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:08,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:16:08,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:16:08,305 INFO L87 Difference]: Start difference. First operand 142 states and 182 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:08,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:08,461 INFO L93 Difference]: Finished difference Result 156 states and 189 transitions. [2024-11-09 07:16:08,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:16:08,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-11-09 07:16:08,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:08,463 INFO L225 Difference]: With dead ends: 156 [2024-11-09 07:16:08,463 INFO L226 Difference]: Without dead ends: 153 [2024-11-09 07:16:08,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 07:16:08,464 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 35 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:08,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 87 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:16:08,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-09 07:16:08,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 143. [2024-11-09 07:16:08,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 100 states have (on average 1.52) internal successors, (152), 124 states have internal predecessors, (152), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 07:16:08,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 180 transitions. [2024-11-09 07:16:08,491 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 180 transitions. Word has length 25 [2024-11-09 07:16:08,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:08,492 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 180 transitions. [2024-11-09 07:16:08,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:08,492 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 180 transitions. [2024-11-09 07:16:08,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 07:16:08,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:08,493 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:08,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 07:16:08,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 07:16:08,697 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:16:08,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:08,697 INFO L85 PathProgramCache]: Analyzing trace with hash -2070967588, now seen corresponding path program 1 times [2024-11-09 07:16:08,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:08,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342544854] [2024-11-09 07:16:08,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:08,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:08,799 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:08,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:08,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342544854] [2024-11-09 07:16:08,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342544854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:16:08,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133678299] [2024-11-09 07:16:08,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:08,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:08,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:08,804 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:08,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 07:16:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:08,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:16:08,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:08,931 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:08,931 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:16:09,034 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:16:09,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133678299] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:16:09,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [812890978] [2024-11-09 07:16:09,059 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 07:16:09,060 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:16:09,065 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:16:09,074 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:16:09,074 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:16:12,750 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 30 for LOIs [2024-11-09 07:16:12,759 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:16:22,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [812890978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:22,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:16:22,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [7, 5, 6] total 30 [2024-11-09 07:16:22,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882247983] [2024-11-09 07:16:22,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:22,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 07:16:22,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:22,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 07:16:22,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=742, Unknown=1, NotChecked=0, Total=870 [2024-11-09 07:16:22,305 INFO L87 Difference]: Start difference. First operand 143 states and 180 transitions. Second operand has 19 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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 07:16:24,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 07:16:25,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 07:16:29,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:16:33,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:16:37,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:16:43,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:16:47,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:16:49,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:16:51,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:16:52,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:16:54,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:16:59,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:17:04,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:04,001 INFO L93 Difference]: Finished difference Result 193 states and 233 transitions. [2024-11-09 07:17:04,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 07:17:04,002 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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 27 [2024-11-09 07:17:04,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:04,003 INFO L225 Difference]: With dead ends: 193 [2024-11-09 07:17:04,003 INFO L226 Difference]: Without dead ends: 179 [2024-11-09 07:17:04,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=300, Invalid=1768, Unknown=2, NotChecked=0, Total=2070 [2024-11-09 07:17:04,005 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 102 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 41 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:04,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 211 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 757 Invalid, 4 Unknown, 0 Unchecked, 26.7s Time] [2024-11-09 07:17:04,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-09 07:17:04,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 157. [2024-11-09 07:17:04,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 114 states have (on average 1.4385964912280702) internal successors, (164), 135 states have internal predecessors, (164), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 07:17:04,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 196 transitions. [2024-11-09 07:17:04,041 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 196 transitions. Word has length 27 [2024-11-09 07:17:04,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:04,042 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 196 transitions. [2024-11-09 07:17:04,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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 07:17:04,042 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 196 transitions. [2024-11-09 07:17:04,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 07:17:04,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:04,045 INFO L215 NwaCegarLoop]: trace histogram [3, 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 07:17:04,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 07:17:04,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 07:17:04,254 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:17:04,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:04,255 INFO L85 PathProgramCache]: Analyzing trace with hash 224514294, now seen corresponding path program 1 times [2024-11-09 07:17:04,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:04,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49095508] [2024-11-09 07:17:04,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:04,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:04,385 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:17:04,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:04,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49095508] [2024-11-09 07:17:04,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49095508] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:04,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635756595] [2024-11-09 07:17:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:04,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:04,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:04,389 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:04,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 07:17:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:04,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:17:04,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:04,523 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:17:04,523 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:04,623 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 07:17:04,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635756595] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:04,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1404549974] [2024-11-09 07:17:04,626 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:17:04,626 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:17:04,626 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:17:04,627 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:17:04,627 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:17:06,725 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 30 for LOIs [2024-11-09 07:17:06,739 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:17:09,359 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4684#(and (<= 1 |#StackHeapBarrier|) (<= (div |ULTIMATE.start_main_~p~0#1| 2) 4611686018427387903) (= (mod |ULTIMATE.start_main_~p~0#1| 2) 0) (<= 0 (+ (div |ULTIMATE.start_main_~p~0#1| 2) 4611686018427387904)) (= |ULTIMATE.start_main_~d~0#1| (* (* (div |ULTIMATE.start_main_~p~0#1| 2) (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 2)) (<= (* (div |ULTIMATE.start_main_~p~0#1| 2) (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 4611686018427387903) (<= (* (div |ULTIMATE.start_main_~p~0#1| 2) (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (= ~counter~0 2147483647) (<= 0 (+ (* (div |ULTIMATE.start_main_~p~0#1| 2) (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 4611686018427387904)))' at error location [2024-11-09 07:17:09,359 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:17:09,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:17:09,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-11-09 07:17:09,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906832007] [2024-11-09 07:17:09,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:17:09,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:17:09,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:09,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:17:09,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2024-11-09 07:17:09,362 INFO L87 Difference]: Start difference. First operand 157 states and 196 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 07:17:09,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:09,631 INFO L93 Difference]: Finished difference Result 300 states and 371 transitions. [2024-11-09 07:17:09,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 07:17:09,632 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 28 [2024-11-09 07:17:09,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:09,633 INFO L225 Difference]: With dead ends: 300 [2024-11-09 07:17:09,633 INFO L226 Difference]: Without dead ends: 207 [2024-11-09 07:17:09,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=204, Invalid=1128, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 07:17:09,635 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 53 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:09,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 359 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:17:09,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-09 07:17:09,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 193. [2024-11-09 07:17:09,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.3943661971830985) internal successors, (198), 163 states have internal predecessors, (198), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 07:17:09,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 242 transitions. [2024-11-09 07:17:09,686 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 242 transitions. Word has length 28 [2024-11-09 07:17:09,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:09,687 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 242 transitions. [2024-11-09 07:17:09,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 07:17:09,687 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 242 transitions. [2024-11-09 07:17:09,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 07:17:09,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:09,692 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:09,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 07:17:09,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:09,893 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:17:09,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:09,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1641910501, now seen corresponding path program 1 times [2024-11-09 07:17:09,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:09,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354810986] [2024-11-09 07:17:09,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:09,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:10,051 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 07:17:10,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:10,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354810986] [2024-11-09 07:17:10,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354810986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:10,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:17:10,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:17:10,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404993895] [2024-11-09 07:17:10,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:10,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:17:10,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:10,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:17:10,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:17:10,054 INFO L87 Difference]: Start difference. First operand 193 states and 242 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 07:17:10,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:10,423 INFO L93 Difference]: Finished difference Result 205 states and 247 transitions. [2024-11-09 07:17:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:17:10,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 37 [2024-11-09 07:17:10,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:10,425 INFO L225 Difference]: With dead ends: 205 [2024-11-09 07:17:10,426 INFO L226 Difference]: Without dead ends: 185 [2024-11-09 07:17:10,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:17:10,427 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 51 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:10,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 127 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:17:10,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-09 07:17:10,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 175. [2024-11-09 07:17:10,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 127 states have (on average 1.4015748031496063) internal successors, (178), 148 states have internal predecessors, (178), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 07:17:10,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 218 transitions. [2024-11-09 07:17:10,461 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 218 transitions. Word has length 37 [2024-11-09 07:17:10,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:10,462 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 218 transitions. [2024-11-09 07:17:10,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 07:17:10,462 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 218 transitions. [2024-11-09 07:17:10,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 07:17:10,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:10,463 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:10,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 07:17:10,463 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:17:10,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:10,464 INFO L85 PathProgramCache]: Analyzing trace with hash -24732112, now seen corresponding path program 1 times [2024-11-09 07:17:10,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:10,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952358499] [2024-11-09 07:17:10,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:10,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 07:17:10,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:10,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952358499] [2024-11-09 07:17:10,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952358499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:10,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480600707] [2024-11-09 07:17:10,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:10,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:10,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:10,611 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:10,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 07:17:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:10,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:17:10,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:10,795 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:17:10,795 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:10,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480600707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:10,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:17:10,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-09 07:17:10,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347591888] [2024-11-09 07:17:10,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:10,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:17:10,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:10,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:17:10,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-09 07:17:10,797 INFO L87 Difference]: Start difference. First operand 175 states and 218 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:17:10,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:10,903 INFO L93 Difference]: Finished difference Result 175 states and 218 transitions. [2024-11-09 07:17:10,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:17:10,903 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-11-09 07:17:10,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:10,905 INFO L225 Difference]: With dead ends: 175 [2024-11-09 07:17:10,905 INFO L226 Difference]: Without dead ends: 174 [2024-11-09 07:17:10,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-09 07:17:10,906 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 61 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:10,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 236 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:17:10,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-09 07:17:10,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-09 07:17:10,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 127 states have (on average 1.3700787401574803) internal successors, (174), 147 states have internal predecessors, (174), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 07:17:10,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 214 transitions. [2024-11-09 07:17:10,947 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 214 transitions. Word has length 39 [2024-11-09 07:17:10,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:10,948 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 214 transitions. [2024-11-09 07:17:10,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:17:10,948 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 214 transitions. [2024-11-09 07:17:10,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 07:17:10,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:10,949 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:10,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 07:17:11,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:11,150 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:17:11,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:11,150 INFO L85 PathProgramCache]: Analyzing trace with hash -766695390, now seen corresponding path program 1 times [2024-11-09 07:17:11,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:11,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408926280] [2024-11-09 07:17:11,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:11,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:11,300 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 07:17:11,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:11,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408926280] [2024-11-09 07:17:11,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408926280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:11,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354765460] [2024-11-09 07:17:11,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:11,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:11,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:11,304 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:11,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 07:17:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:11,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:17:11,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:11,512 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:17:11,512 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 07:17:11,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354765460] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:11,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1758449768] [2024-11-09 07:17:11,654 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:17:11,654 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:17:11,655 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:17:11,655 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:17:11,655 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:17:13,245 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 30 for LOIs [2024-11-09 07:17:13,251 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:17:22,362 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6611#(and (<= 1 |#StackHeapBarrier|) (<= (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 9223372036854775807) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 2147483647 ~counter~0) (= (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~d~0#1|) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~d~0#1|))' at error location [2024-11-09 07:17:22,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:17:22,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:17:22,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-09 07:17:22,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749745602] [2024-11-09 07:17:22,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:17:22,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 07:17:22,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:22,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 07:17:22,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1149, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 07:17:22,365 INFO L87 Difference]: Start difference. First operand 174 states and 214 transitions. Second operand has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 19 states have internal predecessors, (66), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-09 07:17:22,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:22,842 INFO L93 Difference]: Finished difference Result 283 states and 340 transitions. [2024-11-09 07:17:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 07:17:22,843 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 19 states have internal predecessors, (66), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 40 [2024-11-09 07:17:22,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:22,845 INFO L225 Difference]: With dead ends: 283 [2024-11-09 07:17:22,845 INFO L226 Difference]: Without dead ends: 282 [2024-11-09 07:17:22,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=348, Invalid=2004, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 07:17:22,847 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 269 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:22,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 548 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:17:22,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-09 07:17:22,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 249. [2024-11-09 07:17:22,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 194 states have (on average 1.407216494845361) internal successors, (273), 214 states have internal predecessors, (273), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-09 07:17:22,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 325 transitions. [2024-11-09 07:17:22,888 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 325 transitions. Word has length 40 [2024-11-09 07:17:22,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:22,889 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 325 transitions. [2024-11-09 07:17:22,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 19 states have internal predecessors, (66), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-09 07:17:22,889 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 325 transitions. [2024-11-09 07:17:22,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 07:17:22,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:22,890 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-09 07:17:22,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 07:17:23,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 07:17:23,091 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:17:23,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:23,092 INFO L85 PathProgramCache]: Analyzing trace with hash -766647724, now seen corresponding path program 1 times [2024-11-09 07:17:23,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:23,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725073391] [2024-11-09 07:17:23,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:23,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 07:17:23,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:23,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725073391] [2024-11-09 07:17:23,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725073391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:23,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495317350] [2024-11-09 07:17:23,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:23,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:23,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:23,167 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:23,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 07:17:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:23,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:17:23,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:23,292 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 07:17:23,292 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:23,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495317350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:23,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:17:23,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-09 07:17:23,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315991809] [2024-11-09 07:17:23,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:23,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:17:23,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:23,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:17:23,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:17:23,295 INFO L87 Difference]: Start difference. First operand 249 states and 325 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:17:23,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:23,421 INFO L93 Difference]: Finished difference Result 257 states and 332 transitions. [2024-11-09 07:17:23,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:17:23,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-09 07:17:23,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:23,425 INFO L225 Difference]: With dead ends: 257 [2024-11-09 07:17:23,426 INFO L226 Difference]: Without dead ends: 254 [2024-11-09 07:17:23,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 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 07:17:23,427 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 50 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:23,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 120 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:17:23,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-09 07:17:23,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 246. [2024-11-09 07:17:23,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 194 states have (on average 1.3350515463917525) internal successors, (259), 211 states have internal predecessors, (259), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-09 07:17:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 311 transitions. [2024-11-09 07:17:23,487 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 311 transitions. Word has length 40 [2024-11-09 07:17:23,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:23,489 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 311 transitions. [2024-11-09 07:17:23,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:17:23,490 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 311 transitions. [2024-11-09 07:17:23,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 07:17:23,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:23,490 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 07:17:23,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 07:17:23,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:23,691 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:17:23,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:23,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2003724404, now seen corresponding path program 1 times [2024-11-09 07:17:23,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:23,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450717043] [2024-11-09 07:17:23,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:23,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:23,756 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 07:17:23,756 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:23,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450717043] [2024-11-09 07:17:23,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450717043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:23,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264976194] [2024-11-09 07:17:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:23,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:23,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:23,759 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:23,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 07:17:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:23,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:17:23,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:23,891 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 07:17:23,891 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 07:17:23,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264976194] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:23,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [804965688] [2024-11-09 07:17:23,995 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-09 07:17:23,996 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:17:23,996 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:17:23,996 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:17:23,997 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:17:25,303 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 30 for LOIs [2024-11-09 07:17:25,309 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:17:29,953 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8289#(and (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~p~0#1_67| Int)) (and (<= (* |v_ULTIMATE.start_main_~p~0#1_67| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 4611686018427387903) (<= (* |v_ULTIMATE.start_main_~p~0#1_67| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~d~0#1| (* 2 (* |v_ULTIMATE.start_main_~p~0#1_67| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)))) (<= 4611686018427387904 |v_ULTIMATE.start_main_~p~0#1_67|))))' at error location [2024-11-09 07:17:29,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:17:29,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:17:29,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-09 07:17:29,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343477114] [2024-11-09 07:17:29,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:17:29,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:17:29,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:29,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:17:29,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-11-09 07:17:29,955 INFO L87 Difference]: Start difference. First operand 246 states and 311 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-09 07:17:30,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:30,328 INFO L93 Difference]: Finished difference Result 448 states and 575 transitions. [2024-11-09 07:17:30,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:17:30,329 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 41 [2024-11-09 07:17:30,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:30,334 INFO L225 Difference]: With dead ends: 448 [2024-11-09 07:17:30,334 INFO L226 Difference]: Without dead ends: 445 [2024-11-09 07:17:30,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-11-09 07:17:30,336 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 167 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:30,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 261 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:17:30,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-09 07:17:30,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 392. [2024-11-09 07:17:30,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 327 states have (on average 1.3608562691131498) internal successors, (445), 344 states have internal predecessors, (445), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-09 07:17:30,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 523 transitions. [2024-11-09 07:17:30,387 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 523 transitions. Word has length 41 [2024-11-09 07:17:30,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:30,387 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 523 transitions. [2024-11-09 07:17:30,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-09 07:17:30,388 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 523 transitions. [2024-11-09 07:17:30,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 07:17:30,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:30,389 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:30,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 07:17:30,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 07:17:30,590 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:17:30,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:30,590 INFO L85 PathProgramCache]: Analyzing trace with hash -548779887, now seen corresponding path program 1 times [2024-11-09 07:17:30,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:30,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878585022] [2024-11-09 07:17:30,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:30,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:30,732 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:17:30,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:30,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878585022] [2024-11-09 07:17:30,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878585022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:30,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834933320] [2024-11-09 07:17:30,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:30,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:30,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:30,735 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:30,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 07:17:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:30,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:17:30,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:31,258 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:17:31,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:31,503 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:17:31,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834933320] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:31,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1197102997] [2024-11-09 07:17:31,506 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-09 07:17:31,507 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:17:31,508 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:17:31,508 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:17:31,508 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:17:33,012 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-09 07:17:33,013 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:17:35,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1197102997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:35,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:17:35,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 30 [2024-11-09 07:17:35,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004346429] [2024-11-09 07:17:35,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:35,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 07:17:35,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:35,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 07:17:35,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=724, Unknown=0, NotChecked=0, Total=930 [2024-11-09 07:17:35,962 INFO L87 Difference]: Start difference. First operand 392 states and 523 transitions. Second operand has 22 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 07:17:41,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:41,150 INFO L93 Difference]: Finished difference Result 420 states and 549 transitions. [2024-11-09 07:17:41,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 07:17:41,151 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 56 [2024-11-09 07:17:41,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:41,153 INFO L225 Difference]: With dead ends: 420 [2024-11-09 07:17:41,153 INFO L226 Difference]: Without dead ends: 418 [2024-11-09 07:17:41,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 132 SyntacticMatches, 9 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=485, Invalid=1867, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 07:17:41,155 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 81 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:41,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 156 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 07:17:41,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-09 07:17:41,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 391. [2024-11-09 07:17:41,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 325 states have (on average 1.3476923076923077) internal successors, (438), 343 states have internal predecessors, (438), 39 states have call successors, (39), 9 states have call predecessors, (39), 9 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-09 07:17:41,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 516 transitions. [2024-11-09 07:17:41,213 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 516 transitions. Word has length 56 [2024-11-09 07:17:41,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:41,213 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 516 transitions. [2024-11-09 07:17:41,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 07:17:41,214 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 516 transitions. [2024-11-09 07:17:41,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 07:17:41,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:41,215 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:41,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 07:17:41,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:41,416 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:17:41,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:41,416 INFO L85 PathProgramCache]: Analyzing trace with hash 689323061, now seen corresponding path program 1 times [2024-11-09 07:17:41,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:41,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295750935] [2024-11-09 07:17:41,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:41,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:41,471 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 07:17:41,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:41,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295750935] [2024-11-09 07:17:41,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295750935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:41,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:17:41,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:17:41,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061529161] [2024-11-09 07:17:41,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:41,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:17:41,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:41,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:17:41,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:17:41,473 INFO L87 Difference]: Start difference. First operand 391 states and 516 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 07:17:41,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:41,583 INFO L93 Difference]: Finished difference Result 391 states and 516 transitions. [2024-11-09 07:17:41,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:17:41,584 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-11-09 07:17:41,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:41,588 INFO L225 Difference]: With dead ends: 391 [2024-11-09 07:17:41,588 INFO L226 Difference]: Without dead ends: 390 [2024-11-09 07:17:41,588 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 07:17:41,590 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 2 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:41,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 103 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:17:41,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-09 07:17:41,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2024-11-09 07:17:41,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 325 states have (on average 1.3261538461538462) internal successors, (431), 342 states have internal predecessors, (431), 39 states have call successors, (39), 9 states have call predecessors, (39), 9 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-09 07:17:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 509 transitions. [2024-11-09 07:17:41,653 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 509 transitions. Word has length 60 [2024-11-09 07:17:41,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:41,653 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 509 transitions. [2024-11-09 07:17:41,654 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 07:17:41,654 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 509 transitions. [2024-11-09 07:17:41,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 07:17:41,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:41,655 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:41,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 07:17:41,655 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:17:41,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:41,656 INFO L85 PathProgramCache]: Analyzing trace with hash -105821468, now seen corresponding path program 1 times [2024-11-09 07:17:41,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:41,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357095068] [2024-11-09 07:17:41,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:41,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:41,849 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 07:17:41,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:41,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357095068] [2024-11-09 07:17:41,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357095068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:41,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:17:41,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:17:41,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642292440] [2024-11-09 07:17:41,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:41,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:17:41,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:41,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:17:41,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:17:41,851 INFO L87 Difference]: Start difference. First operand 390 states and 509 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 07:17:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:42,268 INFO L93 Difference]: Finished difference Result 593 states and 815 transitions. [2024-11-09 07:17:42,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:17:42,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2024-11-09 07:17:42,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:42,272 INFO L225 Difference]: With dead ends: 593 [2024-11-09 07:17:42,272 INFO L226 Difference]: Without dead ends: 592 [2024-11-09 07:17:42,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:17:42,273 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 123 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:42,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 196 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:17:42,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-11-09 07:17:42,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 530. [2024-11-09 07:17:42,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 453 states have (on average 1.3951434878587197) internal successors, (632), 469 states have internal predecessors, (632), 51 states have call successors, (51), 9 states have call predecessors, (51), 9 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-09 07:17:42,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 734 transitions. [2024-11-09 07:17:42,346 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 734 transitions. Word has length 61 [2024-11-09 07:17:42,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:42,346 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 734 transitions. [2024-11-09 07:17:42,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 07:17:42,347 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 734 transitions. [2024-11-09 07:17:42,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 07:17:42,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:42,348 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:42,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 07:17:42,348 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:17:42,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:42,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1014501911, now seen corresponding path program 1 times [2024-11-09 07:17:42,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:42,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187217024] [2024-11-09 07:17:42,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:42,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:42,532 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:17:42,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:42,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187217024] [2024-11-09 07:17:42,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187217024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:42,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146263828] [2024-11-09 07:17:42,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:42,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:42,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:42,535 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:42,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 07:17:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:42,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:17:42,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:42,820 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 07:17:42,821 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:42,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146263828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:42,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:17:42,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-09 07:17:42,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310131108] [2024-11-09 07:17:42,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:42,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:17:42,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:42,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:17:42,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:17:42,823 INFO L87 Difference]: Start difference. First operand 530 states and 734 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 07:17:43,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:43,119 INFO L93 Difference]: Finished difference Result 549 states and 752 transitions. [2024-11-09 07:17:43,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:17:43,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2024-11-09 07:17:43,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:43,125 INFO L225 Difference]: With dead ends: 549 [2024-11-09 07:17:43,125 INFO L226 Difference]: Without dead ends: 548 [2024-11-09 07:17:43,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:17:43,126 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 81 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:43,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 106 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:17:43,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-09 07:17:43,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 539. [2024-11-09 07:17:43,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 462 states have (on average 1.3766233766233766) internal successors, (636), 478 states have internal predecessors, (636), 51 states have call successors, (51), 9 states have call predecessors, (51), 9 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-09 07:17:43,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 738 transitions. [2024-11-09 07:17:43,205 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 738 transitions. Word has length 62 [2024-11-09 07:17:43,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:43,206 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 738 transitions. [2024-11-09 07:17:43,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 07:17:43,206 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 738 transitions. [2024-11-09 07:17:43,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 07:17:43,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:43,207 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:43,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 07:17:43,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:43,408 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:17:43,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:43,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1384788294, now seen corresponding path program 1 times [2024-11-09 07:17:43,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:43,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251255292] [2024-11-09 07:17:43,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:43,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:43,600 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:17:43,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:43,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251255292] [2024-11-09 07:17:43,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251255292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:43,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602401581] [2024-11-09 07:17:43,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:43,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:43,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:43,603 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:43,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 07:17:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:43,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:17:43,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:43,818 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 07:17:43,818 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:17:43,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602401581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:17:43,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:17:43,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 07:17:43,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034696007] [2024-11-09 07:17:43,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:17:43,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:17:43,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:43,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:17:43,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:17:43,821 INFO L87 Difference]: Start difference. First operand 539 states and 738 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 07:17:44,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:44,096 INFO L93 Difference]: Finished difference Result 549 states and 744 transitions. [2024-11-09 07:17:44,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:17:44,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 63 [2024-11-09 07:17:44,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:44,098 INFO L225 Difference]: With dead ends: 549 [2024-11-09 07:17:44,099 INFO L226 Difference]: Without dead ends: 547 [2024-11-09 07:17:44,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:17:44,100 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 39 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:44,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 81 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:17:44,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-09 07:17:44,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 542. [2024-11-09 07:17:44,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 465 states have (on average 1.356989247311828) internal successors, (631), 481 states have internal predecessors, (631), 51 states have call successors, (51), 9 states have call predecessors, (51), 9 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-09 07:17:44,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 733 transitions. [2024-11-09 07:17:44,180 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 733 transitions. Word has length 63 [2024-11-09 07:17:44,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:44,180 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 733 transitions. [2024-11-09 07:17:44,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 07:17:44,180 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 733 transitions. [2024-11-09 07:17:44,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 07:17:44,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:44,181 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:44,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 07:17:44,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 07:17:44,382 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:17:44,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:44,382 INFO L85 PathProgramCache]: Analyzing trace with hash -854560742, now seen corresponding path program 1 times [2024-11-09 07:17:44,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:44,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027098531] [2024-11-09 07:17:44,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:44,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:44,602 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:17:44,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:44,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027098531] [2024-11-09 07:17:44,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027098531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:44,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145421758] [2024-11-09 07:17:44,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:44,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:44,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:44,607 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:44,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 07:17:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:44,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:17:44,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:44,810 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 07:17:44,810 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:45,064 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:17:45,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145421758] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:45,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [671087619] [2024-11-09 07:17:45,067 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 07:17:45,070 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:17:45,070 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:17:45,071 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:17:45,071 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:17:46,862 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:17:47,066 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:17:48,191 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:17:48,195 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:17:55,737 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16397#(and (exists ((v_~counter~0_61 Int) (|v_ULTIMATE.start_main_~q~0#1_48| Int) (|v_ULTIMATE.start_main_~d~0#1_88| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1| |v_ULTIMATE.start_main_~d~0#1_88|)) (<= (+ |ULTIMATE.start_main_~r~0#1| |v_ULTIMATE.start_main_~d~0#1_88|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~q~0#1_48| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_48| 9223372036854775808)) (<= v_~counter~0_61 50) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_48| |v_ULTIMATE.start_main_~d~0#1_88|)) 0) (= ~counter~0 (+ v_~counter~0_61 1)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))) (<= 51 ~counter~0))' at error location [2024-11-09 07:17:55,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:17:55,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:17:55,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 21 [2024-11-09 07:17:55,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007043217] [2024-11-09 07:17:55,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:17:55,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 07:17:55,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:55,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 07:17:55,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=2572, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 07:17:55,740 INFO L87 Difference]: Start difference. First operand 542 states and 733 transitions. Second operand has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-09 07:17:56,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:56,357 INFO L93 Difference]: Finished difference Result 691 states and 909 transitions. [2024-11-09 07:17:56,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 07:17:56,357 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 68 [2024-11-09 07:17:56,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:56,360 INFO L225 Difference]: With dead ends: 691 [2024-11-09 07:17:56,360 INFO L226 Difference]: Without dead ends: 682 [2024-11-09 07:17:56,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 156 SyntacticMatches, 5 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1975 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=495, Invalid=4335, Unknown=0, NotChecked=0, Total=4830 [2024-11-09 07:17:56,363 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 192 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:56,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 618 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:17:56,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-09 07:17:56,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 640. [2024-11-09 07:17:56,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 552 states have (on average 1.355072463768116) internal successors, (748), 568 states have internal predecessors, (748), 59 states have call successors, (59), 12 states have call predecessors, (59), 12 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-09 07:17:56,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 866 transitions. [2024-11-09 07:17:56,445 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 866 transitions. Word has length 68 [2024-11-09 07:17:56,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:56,446 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 866 transitions. [2024-11-09 07:17:56,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-09 07:17:56,446 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 866 transitions. [2024-11-09 07:17:56,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 07:17:56,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:56,447 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:56,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 07:17:56,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-09 07:17:56,652 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:17:56,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:56,652 INFO L85 PathProgramCache]: Analyzing trace with hash -854560724, now seen corresponding path program 1 times [2024-11-09 07:17:56,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:56,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198387966] [2024-11-09 07:17:56,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:56,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:17:56,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1152134893] [2024-11-09 07:17:56,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:56,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:56,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:56,678 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:56,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 07:17:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:56,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:17:56,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:57,133 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:17:57,133 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:58,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:58,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198387966] [2024-11-09 07:17:58,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:17:58,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152134893] [2024-11-09 07:17:58,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152134893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:58,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1444486393] [2024-11-09 07:17:58,064 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:17:58,064 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:17:58,064 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:17:58,064 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:17:58,064 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:17:59,410 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:17:59,542 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:18:00,500 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:18:00,504 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:18:19,331 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18299#(and (<= ~counter~0 50) (exists ((v_~counter~0_71 Int) (|v_ULTIMATE.start_main_~B~0#1_40| Int) (|v_ULTIMATE.start_main_~q~0#1_54| Int)) (and (<= 1 |#StackHeapBarrier|) (= ~counter~0 (+ v_~counter~0_71 1)) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_54| (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296))) 0) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_54| 9223372036854775808)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))))' at error location [2024-11-09 07:18:19,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:18:19,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:18:19,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-09 07:18:19,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300725608] [2024-11-09 07:18:19,332 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:18:19,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:18:19,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:18:19,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:18:19,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1394, Unknown=3, NotChecked=0, Total=1640 [2024-11-09 07:18:19,334 INFO L87 Difference]: Start difference. First operand 640 states and 866 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 07:18:19,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:19,589 INFO L93 Difference]: Finished difference Result 664 states and 881 transitions. [2024-11-09 07:18:19,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:18:19,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-11-09 07:18:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:19,592 INFO L225 Difference]: With dead ends: 664 [2024-11-09 07:18:19,592 INFO L226 Difference]: Without dead ends: 417 [2024-11-09 07:18:19,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 107 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=251, Invalid=1468, Unknown=3, NotChecked=0, Total=1722 [2024-11-09 07:18:19,594 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 70 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:19,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 184 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:18:19,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-09 07:18:19,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 413. [2024-11-09 07:18:19,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 344 states have (on average 1.322674418604651) internal successors, (455), 360 states have internal predecessors, (455), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-09 07:18:19,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 537 transitions. [2024-11-09 07:18:19,656 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 537 transitions. Word has length 68 [2024-11-09 07:18:19,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:19,657 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 537 transitions. [2024-11-09 07:18:19,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 07:18:19,657 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 537 transitions. [2024-11-09 07:18:19,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 07:18:19,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:19,658 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:18:19,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 07:18:19,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 07:18:19,863 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:18:19,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:19,863 INFO L85 PathProgramCache]: Analyzing trace with hash -721578577, now seen corresponding path program 1 times [2024-11-09 07:18:19,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:18:19,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486222351] [2024-11-09 07:18:19,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:19,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:18:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:18:19,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [412377958] [2024-11-09 07:18:19,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:19,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:18:19,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:18:19,901 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:18:19,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 07:18:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:19,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:18:19,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:20,346 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:18:20,347 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:20,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:18:20,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486222351] [2024-11-09 07:18:20,723 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:18:20,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412377958] [2024-11-09 07:18:20,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412377958] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:18:20,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1006975712] [2024-11-09 07:18:20,726 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:18:20,729 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:18:20,729 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:18:20,730 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:18:20,730 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:18:22,123 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:18:22,199 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:18:23,173 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:18:23,180 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:18:31,891 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19887#(and (<= ~counter~0 50) (exists ((|v_ULTIMATE.start_main_~B~0#1_41| Int) (|v_ULTIMATE.start_main_~q~0#1_60| Int) (v_~counter~0_81 Int)) (and (<= 1 |#StackHeapBarrier|) (= ~counter~0 (+ v_~counter~0_81 1)) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_60| (mod |v_ULTIMATE.start_main_~B~0#1_41| 4294967296))) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~q~0#1_60| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))))' at error location [2024-11-09 07:18:31,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:18:31,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:18:31,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-09 07:18:31,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105887599] [2024-11-09 07:18:31,892 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:18:31,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:18:31,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:18:31,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:18:31,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1384, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 07:18:31,894 INFO L87 Difference]: Start difference. First operand 413 states and 537 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 07:18:32,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:32,091 INFO L93 Difference]: Finished difference Result 422 states and 544 transitions. [2024-11-09 07:18:32,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:18:32,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2024-11-09 07:18:32,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:32,094 INFO L225 Difference]: With dead ends: 422 [2024-11-09 07:18:32,094 INFO L226 Difference]: Without dead ends: 421 [2024-11-09 07:18:32,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 110 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=256, Invalid=1384, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 07:18:32,095 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 50 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:32,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 139 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:18:32,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-09 07:18:32,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 413. [2024-11-09 07:18:32,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 344 states have (on average 1.319767441860465) internal successors, (454), 360 states have internal predecessors, (454), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-09 07:18:32,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 536 transitions. [2024-11-09 07:18:32,160 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 536 transitions. Word has length 69 [2024-11-09 07:18:32,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:32,160 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 536 transitions. [2024-11-09 07:18:32,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 07:18:32,161 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 536 transitions. [2024-11-09 07:18:32,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 07:18:32,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:32,162 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:18:32,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-09 07:18:32,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-09 07:18:32,366 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:18:32,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:32,366 INFO L85 PathProgramCache]: Analyzing trace with hash -894099314, now seen corresponding path program 1 times [2024-11-09 07:18:32,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:18:32,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532135404] [2024-11-09 07:18:32,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:32,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:18:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:32,459 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 07:18:32,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:18:32,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532135404] [2024-11-09 07:18:32,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532135404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:18:32,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:18:32,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:18:32,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784056019] [2024-11-09 07:18:32,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:18:32,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:18:32,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:18:32,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:18:32,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:18:32,461 INFO L87 Difference]: Start difference. First operand 413 states and 536 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 07:18:33,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:33,751 INFO L93 Difference]: Finished difference Result 418 states and 543 transitions. [2024-11-09 07:18:33,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:18:33,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2024-11-09 07:18:33,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:33,753 INFO L225 Difference]: With dead ends: 418 [2024-11-09 07:18:33,753 INFO L226 Difference]: Without dead ends: 417 [2024-11-09 07:18:33,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:18:33,753 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 91 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:33,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 85 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 07:18:33,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-09 07:18:33,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 398. [2024-11-09 07:18:33,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 330 states have (on average 1.293939393939394) internal successors, (427), 345 states have internal predecessors, (427), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-09 07:18:33,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 509 transitions. [2024-11-09 07:18:33,817 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 509 transitions. Word has length 70 [2024-11-09 07:18:33,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:33,817 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 509 transitions. [2024-11-09 07:18:33,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 07:18:33,818 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 509 transitions. [2024-11-09 07:18:33,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 07:18:33,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:33,819 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:18:33,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 07:18:33,819 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:18:33,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:33,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1947274863, now seen corresponding path program 1 times [2024-11-09 07:18:33,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:18:33,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355376288] [2024-11-09 07:18:33,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:33,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:18:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:18:33,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [373682811] [2024-11-09 07:18:33,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:33,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:18:33,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:18:33,842 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:18:33,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 07:18:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:33,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 07:18:33,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:18:34,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:37,367 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:18:37,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:18:37,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355376288] [2024-11-09 07:18:37,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:18:37,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373682811] [2024-11-09 07:18:37,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373682811] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:18:37,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [949095769] [2024-11-09 07:18:37,369 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:18:37,370 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:18:37,370 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:18:37,370 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:18:37,370 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:18:38,584 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:18:38,660 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:18:39,576 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:18:39,580 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:18:53,739 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22365#(and (exists ((v_~counter~0_94 Int) (|v_ULTIMATE.start_main_~B~0#1_42| Int) (|v_ULTIMATE.start_main_~r~0#1_57| Int) (|v_ULTIMATE.start_main_~q~0#1_66| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (+ |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_57|) 9223372036854775807) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_66| (mod |v_ULTIMATE.start_main_~B~0#1_42| 4294967296)) |v_ULTIMATE.start_main_~r~0#1_57|)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_57|)) (= ~counter~0 (+ v_~counter~0_94 1)) (<= (* |v_ULTIMATE.start_main_~q~0#1_66| (mod |v_ULTIMATE.start_main_~B~0#1_42| 4294967296)) 9223372036854775807) (<= |v_ULTIMATE.start_main_~r~0#1_57| 9223372036854775807) (<= 3 ~counter~0))) (<= ~counter~0 50))' at error location [2024-11-09 07:18:53,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:18:53,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:18:53,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-09 07:18:53,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176326022] [2024-11-09 07:18:53,739 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 07:18:53,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 07:18:53,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:18:53,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 07:18:53,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1814, Unknown=3, NotChecked=0, Total=2070 [2024-11-09 07:18:53,741 INFO L87 Difference]: Start difference. First operand 398 states and 509 transitions. Second operand has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-09 07:18:55,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:55,830 INFO L93 Difference]: Finished difference Result 500 states and 645 transitions. [2024-11-09 07:18:55,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 07:18:55,831 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 71 [2024-11-09 07:18:55,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:55,833 INFO L225 Difference]: With dead ends: 500 [2024-11-09 07:18:55,833 INFO L226 Difference]: Without dead ends: 499 [2024-11-09 07:18:55,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 161 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 981 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=367, Invalid=2600, Unknown=3, NotChecked=0, Total=2970 [2024-11-09 07:18:55,835 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 314 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:55,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 301 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 07:18:55,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-09 07:18:55,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 418. [2024-11-09 07:18:55,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 350 states have (on average 1.2971428571428572) internal successors, (454), 365 states have internal predecessors, (454), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-09 07:18:55,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 536 transitions. [2024-11-09 07:18:55,913 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 536 transitions. Word has length 71 [2024-11-09 07:18:55,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:55,914 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 536 transitions. [2024-11-09 07:18:55,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-09 07:18:55,914 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 536 transitions. [2024-11-09 07:18:55,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 07:18:55,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:55,915 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2024-11-09 07:18:55,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-09 07:18:56,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 07:18:56,120 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:18:56,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:56,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1350214992, now seen corresponding path program 1 times [2024-11-09 07:18:56,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:18:56,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315543559] [2024-11-09 07:18:56,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:56,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:18:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:18:56,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661717269] [2024-11-09 07:18:56,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:56,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:18:56,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:18:56,152 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:18:56,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 07:18:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:56,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:18:56,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 07:18:56,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:56,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:18:56,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315543559] [2024-11-09 07:18:56,878 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:18:56,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661717269] [2024-11-09 07:18:56,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661717269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:18:56,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [589378448] [2024-11-09 07:18:56,880 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 07:18:56,881 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:18:56,881 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:18:56,881 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:18:56,881 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:18:58,303 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:18:58,411 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:18:59,223 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:18:59,227 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:19:05,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [589378448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:19:05,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:19:05,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [5] total 37 [2024-11-09 07:19:05,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92513397] [2024-11-09 07:19:05,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:19:05,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-09 07:19:05,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:19:05,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-09 07:19:05,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=1474, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 07:19:05,921 INFO L87 Difference]: Start difference. First operand 418 states and 536 transitions. Second operand has 34 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 07:19:13,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:19:13,958 INFO L93 Difference]: Finished difference Result 696 states and 940 transitions. [2024-11-09 07:19:13,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-09 07:19:13,959 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 81 [2024-11-09 07:19:13,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:19:13,960 INFO L225 Difference]: With dead ends: 696 [2024-11-09 07:19:13,960 INFO L226 Difference]: Without dead ends: 441 [2024-11-09 07:19:13,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 145 SyntacticMatches, 5 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1589 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=611, Invalid=4081, Unknown=0, NotChecked=0, Total=4692 [2024-11-09 07:19:13,962 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 162 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:19:13,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 167 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 07:19:13,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-09 07:19:14,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 423. [2024-11-09 07:19:14,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 356 states have (on average 1.3117977528089888) internal successors, (467), 371 states have internal predecessors, (467), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-09 07:19:14,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 549 transitions. [2024-11-09 07:19:14,035 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 549 transitions. Word has length 81 [2024-11-09 07:19:14,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:19:14,035 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 549 transitions. [2024-11-09 07:19:14,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 07:19:14,035 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 549 transitions. [2024-11-09 07:19:14,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 07:19:14,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:19:14,036 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2024-11-09 07:19:14,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 07:19:14,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 07:19:14,237 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:19:14,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:19:14,237 INFO L85 PathProgramCache]: Analyzing trace with hash -397280979, now seen corresponding path program 2 times [2024-11-09 07:19:14,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:19:14,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187559692] [2024-11-09 07:19:14,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:19:14,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:19:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:19:14,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [412524354] [2024-11-09 07:19:14,258 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:19:14,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:19:14,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:19:14,260 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:19:14,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 07:19:14,324 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 07:19:14,324 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:19:14,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 07:19:14,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:19:30,027 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 07:19:30,027 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:19:40,630 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 07:20:01,612 WARN L286 SmtUtils]: Spent 13.79s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:20:01,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:20:01,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187559692] [2024-11-09 07:20:01,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:20:01,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412524354] [2024-11-09 07:20:01,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412524354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:20:01,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1401723465] [2024-11-09 07:20:01,615 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:20:01,616 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:20:01,616 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:20:01,616 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:20:01,616 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:20:02,940 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:20:03,015 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:20:03,885 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:20:03,889 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:20:33,643 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25605#(and (<= ~counter~0 50) (exists ((|v_ULTIMATE.start_main_~B~0#1_45| Int) (|v_ULTIMATE.start_main_~q~0#1_78| Int) (v_~counter~0_114 Int)) (and (<= 1 |#StackHeapBarrier|) (= ~counter~0 (+ v_~counter~0_114 1)) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_78| 9223372036854775808)) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_78| (mod |v_ULTIMATE.start_main_~B~0#1_45| 4294967296))) 0) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))))' at error location [2024-11-09 07:20:33,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:20:33,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:20:33,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 07:20:33,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487115418] [2024-11-09 07:20:33,644 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:20:33,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 07:20:33,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:20:33,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 07:20:33,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1853, Unknown=9, NotChecked=0, Total=2162 [2024-11-09 07:20:33,646 INFO L87 Difference]: Start difference. First operand 423 states and 549 transitions. Second operand has 10 states, 8 states have (on average 6.125) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 07:20:35,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:20:37,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:20:39,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:20:41,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:20:45,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:20:54,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:21:00,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:21:02,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:21:04,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:21:06,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:21:08,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:21:10,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:21:12,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 07:21:12,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:21:12,779 INFO L93 Difference]: Finished difference Result 586 states and 789 transitions. [2024-11-09 07:21:12,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 07:21:12,780 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.125) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 88 [2024-11-09 07:21:12,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:21:12,783 INFO L225 Difference]: With dead ends: 586 [2024-11-09 07:21:12,783 INFO L226 Difference]: Without dead ends: 585 [2024-11-09 07:21:12,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 140 SyntacticMatches, 6 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1135 ImplicationChecksByTransitivity, 66.3s TimeCoverageRelationStatistics Valid=384, Invalid=2360, Unknown=12, NotChecked=0, Total=2756 [2024-11-09 07:21:12,785 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 149 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 26 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:21:12,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 183 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 238 Invalid, 13 Unknown, 0 Unchecked, 26.7s Time] [2024-11-09 07:21:12,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-09 07:21:12,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 546. [2024-11-09 07:21:12,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 465 states have (on average 1.3397849462365592) internal successors, (623), 480 states have internal predecessors, (623), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-09 07:21:12,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 733 transitions. [2024-11-09 07:21:12,886 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 733 transitions. Word has length 88 [2024-11-09 07:21:12,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:21:12,887 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 733 transitions. [2024-11-09 07:21:12,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.125) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 07:21:12,887 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 733 transitions. [2024-11-09 07:21:12,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 07:21:12,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:12,888 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2024-11-09 07:21:12,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-09 07:21:13,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:21:13,093 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:21:13,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:13,093 INFO L85 PathProgramCache]: Analyzing trace with hash 569191630, now seen corresponding path program 2 times [2024-11-09 07:21:13,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:21:13,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697114828] [2024-11-09 07:21:13,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:13,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:21:13,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1178226656] [2024-11-09 07:21:13,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:21:13,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:21:13,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:21:13,130 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:21:13,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 07:21:13,191 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 07:21:13,192 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:21:13,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 07:21:13,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:21:30,072 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 07:21:30,072 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:21:32,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:32,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697114828] [2024-11-09 07:21:32,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:21:32,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178226656] [2024-11-09 07:21:32,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178226656] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:21:32,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1528968955] [2024-11-09 07:21:32,371 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:21:32,371 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:21:32,371 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:21:32,371 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:21:32,371 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:21:33,632 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:21:33,708 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:21:34,804 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:21:34,807 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:21:46,767 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27325#(and (<= ~counter~0 50) (exists ((v_~counter~0_124 Int) (|v_ULTIMATE.start_main_~q~0#1_84| Int) (|v_ULTIMATE.start_main_~B~0#1_48| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_84| 9223372036854775807) (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_84| (mod |v_ULTIMATE.start_main_~B~0#1_48| 4294967296))) (<= 0 |ULTIMATE.start_main_~r~0#1|) (= ~counter~0 (+ v_~counter~0_124 1)) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))))' at error location [2024-11-09 07:21:46,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:21:46,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:21:46,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 07:21:46,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705257407] [2024-11-09 07:21:46,768 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:21:46,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 07:21:46,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:46,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 07:21:46,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=2002, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 07:21:46,770 INFO L87 Difference]: Start difference. First operand 546 states and 733 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 07:21:49,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:21:51,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:21:53,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:21:55,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:22:01,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:22:03,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:22:07,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:22:09,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:22:11,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:22:13,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:22:15,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:22:16,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:16,073 INFO L93 Difference]: Finished difference Result 597 states and 792 transitions. [2024-11-09 07:22:16,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 07:22:16,074 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 89 [2024-11-09 07:22:16,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:16,076 INFO L225 Difference]: With dead ends: 597 [2024-11-09 07:22:16,076 INFO L226 Difference]: Without dead ends: 596 [2024-11-09 07:22:16,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 141 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 26.0s TimeCoverageRelationStatistics Valid=435, Invalid=2534, Unknown=1, NotChecked=0, Total=2970 [2024-11-09 07:22:16,077 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 131 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 24 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:16,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 175 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 373 Invalid, 11 Unknown, 0 Unchecked, 22.9s Time] [2024-11-09 07:22:16,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-09 07:22:16,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 546. [2024-11-09 07:22:16,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 465 states have (on average 1.3268817204301075) internal successors, (617), 480 states have internal predecessors, (617), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-09 07:22:16,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 727 transitions. [2024-11-09 07:22:16,175 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 727 transitions. Word has length 89 [2024-11-09 07:22:16,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:16,175 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 727 transitions. [2024-11-09 07:22:16,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 07:22:16,175 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 727 transitions. [2024-11-09 07:22:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 07:22:16,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:16,177 INFO L215 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2024-11-09 07:22:16,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-09 07:22:16,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-09 07:22:16,377 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:22:16,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:16,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2004237768, now seen corresponding path program 1 times [2024-11-09 07:22:16,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:22:16,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779455098] [2024-11-09 07:22:16,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:16,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:22:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:22:16,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559057851] [2024-11-09 07:22:16,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:16,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:16,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:22:16,403 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:22:16,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 07:22:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:16,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:22:16,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-09 07:22:16,887 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:17,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:22:17,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779455098] [2024-11-09 07:22:17,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:22:17,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559057851] [2024-11-09 07:22:17,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559057851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:22:17,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1434583468] [2024-11-09 07:22:17,038 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:22:17,038 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:22:17,038 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:22:17,038 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:22:17,038 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:22:18,366 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:22:18,452 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:22:19,254 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:22:19,258 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:22:26,194 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29096#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_160| Int) (|v_ULTIMATE.start_main_~B~0#1_49| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~p~0#1_160| (mod |v_ULTIMATE.start_main_~B~0#1_49| 4294967296))) (= (+ (* |ULTIMATE.start_main_~q~0#1| (mod |v_ULTIMATE.start_main_~B~0#1_49| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (mod |ULTIMATE.start_main_~A~0#1| 4294967296)))) (<= ~counter~0 50) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))' at error location [2024-11-09 07:22:26,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:22:26,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:22:26,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-09 07:22:26,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948839925] [2024-11-09 07:22:26,195 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:22:26,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:22:26,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:22:26,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:22:26,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1323, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 07:22:26,196 INFO L87 Difference]: Start difference. First operand 546 states and 727 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-09 07:22:26,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:26,463 INFO L93 Difference]: Finished difference Result 730 states and 956 transitions. [2024-11-09 07:22:26,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:22:26,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 96 [2024-11-09 07:22:26,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:26,466 INFO L225 Difference]: With dead ends: 730 [2024-11-09 07:22:26,466 INFO L226 Difference]: Without dead ends: 611 [2024-11-09 07:22:26,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 171 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=237, Invalid=1323, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 07:22:26,467 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 64 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:26,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 238 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:22:26,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-09 07:22:26,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 602. [2024-11-09 07:22:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 517 states have (on average 1.3075435203094778) internal successors, (676), 532 states have internal predecessors, (676), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-09 07:22:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 794 transitions. [2024-11-09 07:22:26,577 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 794 transitions. Word has length 96 [2024-11-09 07:22:26,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:26,577 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 794 transitions. [2024-11-09 07:22:26,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-09 07:22:26,578 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 794 transitions. [2024-11-09 07:22:26,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 07:22:26,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:26,579 INFO L215 NwaCegarLoop]: trace histogram [15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2024-11-09 07:22:26,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-09 07:22:26,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:26,780 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:22:26,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:26,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1037264175, now seen corresponding path program 2 times [2024-11-09 07:22:26,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:22:26,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287503321] [2024-11-09 07:22:26,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:26,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:22:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:26,917 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-09 07:22:26,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:22:26,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287503321] [2024-11-09 07:22:26,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287503321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:22:26,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844801920] [2024-11-09 07:22:26,918 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:22:26,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:26,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:22:26,920 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:22:26,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 07:22:26,971 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 07:22:26,971 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:22:26,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:22:26,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 14 proven. 20 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-09 07:22:27,248 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:27,533 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 14 proven. 20 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-09 07:22:27,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844801920] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:27,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [203814398] [2024-11-09 07:22:27,534 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-09 07:22:27,535 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:22:27,535 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:22:27,536 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:22:27,536 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:22:28,233 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-09 07:22:28,235 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:22:30,889 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '31318#(and (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0) (exists ((|v_ULTIMATE.start_main_~p~0#1_171| Int)) (and (<= (* |v_ULTIMATE.start_main_~p~0#1_171| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (<= 4611686018427387904 |v_ULTIMATE.start_main_~p~0#1_171|) (= (* 2 (* |v_ULTIMATE.start_main_~p~0#1_171| (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) |ULTIMATE.start_main_~d~0#1|))) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~r~0#1| (mod |ULTIMATE.start_main_~A~0#1| 4294967296)))' at error location [2024-11-09 07:22:30,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:22:30,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:22:30,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-11-09 07:22:30,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121890079] [2024-11-09 07:22:30,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:22:30,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:22:30,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:22:30,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:22:30,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2024-11-09 07:22:30,891 INFO L87 Difference]: Start difference. First operand 602 states and 794 transitions. Second operand has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (20), 8 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-09 07:22:32,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:32,290 INFO L93 Difference]: Finished difference Result 1434 states and 1967 transitions. [2024-11-09 07:22:32,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 07:22:32,291 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (20), 8 states have call predecessors, (20), 6 states have call successors, (20) Word has length 101 [2024-11-09 07:22:32,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:32,294 INFO L225 Difference]: With dead ends: 1434 [2024-11-09 07:22:32,294 INFO L226 Difference]: Without dead ends: 1430 [2024-11-09 07:22:32,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 276 SyntacticMatches, 7 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=300, Invalid=1260, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 07:22:32,295 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 559 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:32,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 231 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 07:22:32,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2024-11-09 07:22:32,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1141. [2024-11-09 07:22:32,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1005 states have (on average 1.317412935323383) internal successors, (1324), 1019 states have internal predecessors, (1324), 111 states have call successors, (111), 10 states have call predecessors, (111), 10 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-09 07:22:32,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1546 transitions. [2024-11-09 07:22:32,507 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1546 transitions. Word has length 101 [2024-11-09 07:22:32,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:32,508 INFO L471 AbstractCegarLoop]: Abstraction has 1141 states and 1546 transitions. [2024-11-09 07:22:32,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (20), 8 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-09 07:22:32,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1546 transitions. [2024-11-09 07:22:32,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 07:22:32,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:32,509 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:32,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-09 07:22:32,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-09 07:22:32,714 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:22:32,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:32,714 INFO L85 PathProgramCache]: Analyzing trace with hash -457717349, now seen corresponding path program 1 times [2024-11-09 07:22:32,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:22:32,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755654073] [2024-11-09 07:22:32,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:32,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:22:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 07:22:33,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:22:33,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755654073] [2024-11-09 07:22:33,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755654073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:22:33,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25631278] [2024-11-09 07:22:33,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:33,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:33,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:22:33,061 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:22:33,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 07:22:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:33,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:22:33,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:33,555 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 34 proven. 20 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 07:22:33,556 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 07:22:35,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25631278] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:35,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [815643756] [2024-11-09 07:22:35,341 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:22:35,341 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:22:35,341 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:22:35,342 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:22:35,342 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:22:36,553 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:22:36,628 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:22:37,566 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:22:37,570 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:22:48,056 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '35022#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= ~counter~0 50))' at error location [2024-11-09 07:22:48,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:22:48,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:22:48,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-09 07:22:48,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782864441] [2024-11-09 07:22:48,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:22:48,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 07:22:48,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:22:48,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 07:22:48,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=2271, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 07:22:48,059 INFO L87 Difference]: Start difference. First operand 1141 states and 1546 transitions. Second operand has 19 states, 18 states have (on average 10.444444444444445) internal successors, (188), 19 states have internal predecessors, (188), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-09 07:22:50,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:50,483 INFO L93 Difference]: Finished difference Result 2297 states and 3226 transitions. [2024-11-09 07:22:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 07:22:50,484 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.444444444444445) internal successors, (188), 19 states have internal predecessors, (188), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) Word has length 107 [2024-11-09 07:22:50,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:50,489 INFO L225 Difference]: With dead ends: 2297 [2024-11-09 07:22:50,489 INFO L226 Difference]: Without dead ends: 2295 [2024-11-09 07:22:50,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 270 SyntacticMatches, 8 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1821 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=650, Invalid=4320, Unknown=0, NotChecked=0, Total=4970 [2024-11-09 07:22:50,491 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 955 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:50,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 938 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 07:22:50,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2024-11-09 07:22:50,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 1578. [2024-11-09 07:22:50,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1388 states have (on average 1.335014409221902) internal successors, (1853), 1402 states have internal predecessors, (1853), 165 states have call successors, (165), 10 states have call predecessors, (165), 10 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-09 07:22:50,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 2183 transitions. [2024-11-09 07:22:50,721 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 2183 transitions. Word has length 107 [2024-11-09 07:22:50,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:50,721 INFO L471 AbstractCegarLoop]: Abstraction has 1578 states and 2183 transitions. [2024-11-09 07:22:50,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.444444444444445) internal successors, (188), 19 states have internal predecessors, (188), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-09 07:22:50,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 2183 transitions. [2024-11-09 07:22:50,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 07:22:50,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:50,723 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 07:22:50,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-09 07:22:50,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-09 07:22:50,924 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:22:50,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:50,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1304335808, now seen corresponding path program 1 times [2024-11-09 07:22:50,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:22:50,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706566195] [2024-11-09 07:22:50,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:50,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:22:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:51,239 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2024-11-09 07:22:51,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:22:51,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706566195] [2024-11-09 07:22:51,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706566195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:22:51,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699691821] [2024-11-09 07:22:51,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:51,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:51,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:22:51,241 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:22:51,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 07:22:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:51,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:22:51,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:51,651 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 07:22:51,651 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:55,084 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 07:22:55,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699691821] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:55,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1663994984] [2024-11-09 07:22:55,086 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:22:55,086 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:22:55,086 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:22:55,086 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:22:55,087 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:22:56,413 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:22:56,488 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:22:57,312 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:22:57,315 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:23:04,399 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40277#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= ~counter~0 50) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-09 07:23:04,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:23:04,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:23:04,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2024-11-09 07:23:04,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82029798] [2024-11-09 07:23:04,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:23:04,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 07:23:04,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:23:04,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 07:23:04,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=2285, Unknown=0, NotChecked=0, Total=2652 [2024-11-09 07:23:04,402 INFO L87 Difference]: Start difference. First operand 1578 states and 2183 transitions. Second operand has 21 states, 20 states have (on average 9.95) internal successors, (199), 21 states have internal predecessors, (199), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-09 07:23:05,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:23:05,256 INFO L93 Difference]: Finished difference Result 1950 states and 2753 transitions. [2024-11-09 07:23:05,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 07:23:05,256 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 9.95) internal successors, (199), 21 states have internal predecessors, (199), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 108 [2024-11-09 07:23:05,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:23:05,262 INFO L225 Difference]: With dead ends: 1950 [2024-11-09 07:23:05,262 INFO L226 Difference]: Without dead ends: 1940 [2024-11-09 07:23:05,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 274 SyntacticMatches, 7 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=440, Invalid=2640, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 07:23:05,264 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 307 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:23:05,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 351 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:23:05,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2024-11-09 07:23:05,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1468. [2024-11-09 07:23:05,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1292 states have (on average 1.2763157894736843) internal successors, (1649), 1304 states have internal predecessors, (1649), 153 states have call successors, (153), 10 states have call predecessors, (153), 10 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2024-11-09 07:23:05,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 1955 transitions. [2024-11-09 07:23:05,502 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 1955 transitions. Word has length 108 [2024-11-09 07:23:05,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:23:05,502 INFO L471 AbstractCegarLoop]: Abstraction has 1468 states and 1955 transitions. [2024-11-09 07:23:05,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 9.95) internal successors, (199), 21 states have internal predecessors, (199), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-09 07:23:05,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 1955 transitions. [2024-11-09 07:23:05,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 07:23:05,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:23:05,504 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-09 07:23:05,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-09 07:23:05,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:23:05,709 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:23:05,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:23:05,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1779704259, now seen corresponding path program 1 times [2024-11-09 07:23:05,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:23:05,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449614463] [2024-11-09 07:23:05,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:23:05,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:23:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:23:06,054 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 07:23:06,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:23:06,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449614463] [2024-11-09 07:23:06,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449614463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:23:06,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045302475] [2024-11-09 07:23:06,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:23:06,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:23:06,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:23:06,057 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:23:06,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 07:23:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:23:06,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 07:23:06,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:23:06,517 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 07:23:06,517 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:23:08,426 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 07:23:08,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045302475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:23:08,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [638537891] [2024-11-09 07:23:08,428 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:23:08,428 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:23:08,428 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:23:08,428 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:23:08,428 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:23:09,654 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:23:09,729 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:23:10,572 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:23:10,577 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:23:18,180 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '44977#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= ~counter~0 50) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-09 07:23:18,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:23:18,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:23:18,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-09 07:23:18,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968671209] [2024-11-09 07:23:18,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:23:18,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 07:23:18,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:23:18,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 07:23:18,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=2394, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 07:23:18,182 INFO L87 Difference]: Start difference. First operand 1468 states and 1955 transitions. Second operand has 22 states, 21 states have (on average 10.047619047619047) internal successors, (211), 22 states have internal predecessors, (211), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-09 07:23:19,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:23:19,718 INFO L93 Difference]: Finished difference Result 1565 states and 2076 transitions. [2024-11-09 07:23:19,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 07:23:19,718 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.047619047619047) internal successors, (211), 22 states have internal predecessors, (211), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 109 [2024-11-09 07:23:19,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:23:19,723 INFO L225 Difference]: With dead ends: 1565 [2024-11-09 07:23:19,723 INFO L226 Difference]: Without dead ends: 1564 [2024-11-09 07:23:19,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 276 SyntacticMatches, 7 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1889 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=551, Invalid=3231, Unknown=0, NotChecked=0, Total=3782 [2024-11-09 07:23:19,724 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 327 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:23:19,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 695 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 07:23:19,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2024-11-09 07:23:19,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1500. [2024-11-09 07:23:19,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1320 states have (on average 1.2704545454545455) internal successors, (1677), 1332 states have internal predecessors, (1677), 157 states have call successors, (157), 10 states have call predecessors, (157), 10 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-09 07:23:19,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1991 transitions. [2024-11-09 07:23:19,926 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1991 transitions. Word has length 109 [2024-11-09 07:23:19,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:23:19,927 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 1991 transitions. [2024-11-09 07:23:19,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.047619047619047) internal successors, (211), 22 states have internal predecessors, (211), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-09 07:23:19,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1991 transitions. [2024-11-09 07:23:19,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 07:23:19,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:23:19,928 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 07:23:19,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-09 07:23:20,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:23:20,129 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:23:20,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:23:20,129 INFO L85 PathProgramCache]: Analyzing trace with hash 910908029, now seen corresponding path program 1 times [2024-11-09 07:23:20,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:23:20,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580298306] [2024-11-09 07:23:20,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:23:20,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:23:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:23:20,451 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 07:23:20,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:23:20,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580298306] [2024-11-09 07:23:20,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580298306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:23:20,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628101486] [2024-11-09 07:23:20,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:23:20,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:23:20,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:23:20,454 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:23:20,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 07:23:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:23:20,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 07:23:20,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:23:20,680 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 194 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:23:20,680 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:23:20,992 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 07:23:20,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628101486] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:23:20,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [401374991] [2024-11-09 07:23:20,994 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 07:23:20,994 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:23:20,994 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:23:20,994 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:23:20,994 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:23:23,309 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:23:23,313 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:23:29,184 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '49292#(and (exists ((|v_ULTIMATE.start_main_~d~0#1_231| Int) (|v_ULTIMATE.start_main_~q~0#1_111| Int) (v_~counter~0_203 Int)) (and (<= 1 |#StackHeapBarrier|) (<= v_~counter~0_203 50) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_111| |v_ULTIMATE.start_main_~d~0#1_231|)) 0) (= ~counter~0 (+ v_~counter~0_203 1)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))) (<= 51 ~counter~0))' at error location [2024-11-09 07:23:29,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:23:29,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:23:29,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 29 [2024-11-09 07:23:29,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686797990] [2024-11-09 07:23:29,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:23:29,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 07:23:29,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:23:29,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 07:23:29,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=3388, Unknown=0, NotChecked=0, Total=3782 [2024-11-09 07:23:29,186 INFO L87 Difference]: Start difference. First operand 1500 states and 1991 transitions. Second operand has 29 states, 29 states have (on average 5.241379310344827) internal successors, (152), 29 states have internal predecessors, (152), 10 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 10 states have call predecessors, (39), 10 states have call successors, (39) [2024-11-09 07:23:30,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:23:30,113 INFO L93 Difference]: Finished difference Result 1559 states and 2033 transitions. [2024-11-09 07:23:30,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-09 07:23:30,114 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 5.241379310344827) internal successors, (152), 29 states have internal predecessors, (152), 10 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 10 states have call predecessors, (39), 10 states have call successors, (39) Word has length 110 [2024-11-09 07:23:30,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:23:30,116 INFO L225 Difference]: With dead ends: 1559 [2024-11-09 07:23:30,116 INFO L226 Difference]: Without dead ends: 1003 [2024-11-09 07:23:30,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 275 SyntacticMatches, 8 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3224 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=818, Invalid=6492, Unknown=0, NotChecked=0, Total=7310 [2024-11-09 07:23:30,118 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 140 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:23:30,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 618 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:23:30,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-09 07:23:30,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 992. [2024-11-09 07:23:30,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 862 states have (on average 1.2331786542923433) internal successors, (1063), 874 states have internal predecessors, (1063), 101 states have call successors, (101), 16 states have call predecessors, (101), 16 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-09 07:23:30,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1265 transitions. [2024-11-09 07:23:30,250 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1265 transitions. Word has length 110 [2024-11-09 07:23:30,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:23:30,250 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1265 transitions. [2024-11-09 07:23:30,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.241379310344827) internal successors, (152), 29 states have internal predecessors, (152), 10 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 10 states have call predecessors, (39), 10 states have call successors, (39) [2024-11-09 07:23:30,251 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1265 transitions. [2024-11-09 07:23:30,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 07:23:30,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:23:30,252 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 07:23:30,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-09 07:23:30,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-09 07:23:30,453 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:23:30,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:23:30,453 INFO L85 PathProgramCache]: Analyzing trace with hash 93416806, now seen corresponding path program 3 times [2024-11-09 07:23:30,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:23:30,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050268742] [2024-11-09 07:23:30,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:23:30,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:23:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:23:30,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1868447885] [2024-11-09 07:23:30,481 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:23:30,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:23:30,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:23:30,483 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:23:30,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 07:23:30,569 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:23:30,569 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:23:30,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 07:23:30,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:23:31,300 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 07:23:31,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:23:31,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:23:31,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050268742] [2024-11-09 07:23:31,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:23:31,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868447885] [2024-11-09 07:23:31,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868447885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:23:31,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [931374539] [2024-11-09 07:23:31,634 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:23:31,634 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:23:31,634 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:23:31,634 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:23:31,634 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:23:32,933 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:23:33,008 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:23:33,771 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:23:33,775 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:23:43,791 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '52792#(and (exists ((|v_ULTIMATE.start_main_~q~0#1_118| Int) (|v_ULTIMATE.start_main_~B~0#1_52| Int) (v_~counter~0_213 Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~q~0#1_118| 9223372036854775807) (= ~counter~0 (+ v_~counter~0_213 1)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_118| (mod |v_ULTIMATE.start_main_~B~0#1_52| 4294967296))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))) (<= ~counter~0 50))' at error location [2024-11-09 07:23:43,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:23:43,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:23:43,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-09 07:23:43,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427967686] [2024-11-09 07:23:43,792 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:23:43,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:23:43,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:23:43,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:23:43,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=1537, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 07:23:43,794 INFO L87 Difference]: Start difference. First operand 992 states and 1265 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 07:23:44,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:23:44,129 INFO L93 Difference]: Finished difference Result 996 states and 1265 transitions. [2024-11-09 07:23:44,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:23:44,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 115 [2024-11-09 07:23:44,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:23:44,133 INFO L225 Difference]: With dead ends: 996 [2024-11-09 07:23:44,133 INFO L226 Difference]: Without dead ends: 995 [2024-11-09 07:23:44,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 197 SyntacticMatches, 8 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=269, Invalid=1537, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 07:23:44,135 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 40 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:23:44,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 289 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:23:44,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-09 07:23:44,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 992. [2024-11-09 07:23:44,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 862 states have (on average 1.2320185614849188) internal successors, (1062), 874 states have internal predecessors, (1062), 101 states have call successors, (101), 16 states have call predecessors, (101), 16 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-09 07:23:44,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1264 transitions. [2024-11-09 07:23:44,355 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1264 transitions. Word has length 115 [2024-11-09 07:23:44,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:23:44,358 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1264 transitions. [2024-11-09 07:23:44,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 07:23:44,358 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1264 transitions. [2024-11-09 07:23:44,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 07:23:44,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:23:44,360 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 07:23:44,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-09 07:23:44,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-09 07:23:44,564 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:23:44,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:23:44,564 INFO L85 PathProgramCache]: Analyzing trace with hash -420759672, now seen corresponding path program 2 times [2024-11-09 07:23:44,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:23:44,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694931432] [2024-11-09 07:23:44,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:23:44,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:23:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:23:44,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040069942] [2024-11-09 07:23:44,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:23:44,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:23:44,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:23:44,619 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:23:44,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 07:23:44,699 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 07:23:44,699 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:23:44,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 07:23:44,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:23:46,109 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 07:23:46,110 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:23:54,861 WARN L286 SmtUtils]: Spent 5.99s on a formula simplification. DAG size of input: 70 DAG size of output: 65 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:25:17,230 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-09 07:25:17,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:17,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694931432] [2024-11-09 07:25:17,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:25:17,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040069942] [2024-11-09 07:25:17,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040069942] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:25:17,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1314587777] [2024-11-09 07:25:17,232 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:25:17,232 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:25:17,232 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:25:17,233 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:25:17,233 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:25:18,347 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:25:18,423 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:25:19,448 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:25:19,452 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:25:39,195 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '55908#(and (exists ((|v_ULTIMATE.start_main_~B~0#1_53| Int) (v_~counter~0_228 Int) (|v_ULTIMATE.start_main_~q~0#1_126| Int) (|v_ULTIMATE.start_main_~r~0#1_107| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (* (mod |v_ULTIMATE.start_main_~B~0#1_53| 4294967296) |v_ULTIMATE.start_main_~q~0#1_126|) 9223372036854775807) (<= (+ |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_107|) 9223372036854775807) (<= 9223372036854775808 (+ (* (mod |v_ULTIMATE.start_main_~B~0#1_53| 4294967296) |v_ULTIMATE.start_main_~q~0#1_126|) |v_ULTIMATE.start_main_~r~0#1_107|)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_107|)) (= ~counter~0 (+ v_~counter~0_228 1)) (<= |v_ULTIMATE.start_main_~r~0#1_107| 9223372036854775807) (<= 3 ~counter~0))) (<= ~counter~0 50))' at error location [2024-11-09 07:25:39,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:25:39,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:25:39,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-09 07:25:39,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658447534] [2024-11-09 07:25:39,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 07:25:39,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 07:25:39,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:39,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 07:25:39,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=2923, Unknown=3, NotChecked=0, Total=3306 [2024-11-09 07:25:39,197 INFO L87 Difference]: Start difference. First operand 992 states and 1264 transitions. Second operand has 26 states, 25 states have (on average 6.28) internal successors, (157), 26 states have internal predecessors, (157), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2024-11-09 07:25:44,763 WARN L286 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 190 DAG size of output: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:25:52,501 WARN L286 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 154 DAG size of output: 76 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:26:00,405 WARN L286 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 136 DAG size of output: 114 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:26:15,537 WARN L286 SmtUtils]: Spent 10.93s on a formula simplification. DAG size of input: 194 DAG size of output: 76 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:26:17,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:26:18,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:26:28,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:26:32,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:26:33,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:26:38,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:26:40,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 07:26:48,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:48,147 INFO L93 Difference]: Finished difference Result 1013 states and 1290 transitions. [2024-11-09 07:26:48,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 07:26:48,148 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.28) internal successors, (157), 26 states have internal predecessors, (157), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 117 [2024-11-09 07:26:48,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:48,151 INFO L225 Difference]: With dead ends: 1013 [2024-11-09 07:26:48,151 INFO L226 Difference]: Without dead ends: 956 [2024-11-09 07:26:48,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 285 SyntacticMatches, 8 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1462 ImplicationChecksByTransitivity, 70.5s TimeCoverageRelationStatistics Valid=667, Invalid=4442, Unknown=3, NotChecked=0, Total=5112 [2024-11-09 07:26:48,153 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 259 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:48,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 691 Invalid, 1527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1461 Invalid, 3 Unknown, 0 Unchecked, 26.3s Time] [2024-11-09 07:26:48,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-09 07:26:48,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 940. [2024-11-09 07:26:48,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 816 states have (on average 1.2450980392156863) internal successors, (1016), 828 states have internal predecessors, (1016), 97 states have call successors, (97), 14 states have call predecessors, (97), 14 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-09 07:26:48,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1210 transitions. [2024-11-09 07:26:48,298 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1210 transitions. Word has length 117 [2024-11-09 07:26:48,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:48,298 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1210 transitions. [2024-11-09 07:26:48,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.28) internal successors, (157), 26 states have internal predecessors, (157), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2024-11-09 07:26:48,299 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1210 transitions. [2024-11-09 07:26:48,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-09 07:26:48,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:48,299 INFO L215 NwaCegarLoop]: trace histogram [17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:26:48,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-09 07:26:48,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-09 07:26:48,500 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:26:48,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:48,500 INFO L85 PathProgramCache]: Analyzing trace with hash 98198318, now seen corresponding path program 3 times [2024-11-09 07:26:48,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:26:48,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155027042] [2024-11-09 07:26:48,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:48,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:26:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:26:48,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1800136965] [2024-11-09 07:26:48,527 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:26:48,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:48,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:26:48,529 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:26:48,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 07:26:48,607 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:26:48,607 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:26:48,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 07:26:48,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:49,977 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-09 07:26:49,977 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:26:53,855 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-09 07:26:53,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:26:53,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155027042] [2024-11-09 07:26:53,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:26:53,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800136965] [2024-11-09 07:26:53,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800136965] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:26:53,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2089848009] [2024-11-09 07:26:53,857 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:26:53,857 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:26:53,858 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:26:53,858 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:26:53,858 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:26:55,028 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:26:55,107 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:26:55,913 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:26:55,918 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:27:12,905 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '59096#(and (<= ~counter~0 50) (exists ((|v_ULTIMATE.start_main_~r~0#1_113| Int) (|v_ULTIMATE.start_main_~B~0#1_54| Int) (v_~counter~0_244 Int) (|v_ULTIMATE.start_main_~q~0#1_132| Int)) (and (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_132| (mod |v_ULTIMATE.start_main_~B~0#1_54| 4294967296)) |v_ULTIMATE.start_main_~r~0#1_113|)) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_113|)) (= ~counter~0 (+ v_~counter~0_244 1)) (<= |v_ULTIMATE.start_main_~r~0#1_113| 9223372036854775807) (<= (* |v_ULTIMATE.start_main_~q~0#1_132| (mod |v_ULTIMATE.start_main_~B~0#1_54| 4294967296)) 9223372036854775807) (<= (+ |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_113|) 9223372036854775807) (<= 3 ~counter~0))))' at error location [2024-11-09 07:27:12,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:27:12,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:27:12,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2024-11-09 07:27:12,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719732946] [2024-11-09 07:27:12,906 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 07:27:12,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 07:27:12,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:12,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 07:27:12,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=437, Invalid=3342, Unknown=3, NotChecked=0, Total=3782 [2024-11-09 07:27:12,908 INFO L87 Difference]: Start difference. First operand 940 states and 1210 transitions. Second operand has 30 states, 29 states have (on average 5.551724137931035) internal successors, (161), 30 states have internal predecessors, (161), 12 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2024-11-09 07:27:36,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:36,811 INFO L93 Difference]: Finished difference Result 1166 states and 1486 transitions. [2024-11-09 07:27:36,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-09 07:27:36,812 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 5.551724137931035) internal successors, (161), 30 states have internal predecessors, (161), 12 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) Word has length 131 [2024-11-09 07:27:36,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:36,815 INFO L225 Difference]: With dead ends: 1166 [2024-11-09 07:27:36,815 INFO L226 Difference]: Without dead ends: 1165 [2024-11-09 07:27:36,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 323 SyntacticMatches, 8 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2595 ImplicationChecksByTransitivity, 32.5s TimeCoverageRelationStatistics Valid=1168, Invalid=7759, Unknown=3, NotChecked=0, Total=8930 [2024-11-09 07:27:36,817 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 940 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 2636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:36,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 1019 Invalid, 2636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-09 07:27:36,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2024-11-09 07:27:37,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1044. [2024-11-09 07:27:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 905 states have (on average 1.230939226519337) internal successors, (1114), 917 states have internal predecessors, (1114), 112 states have call successors, (112), 14 states have call predecessors, (112), 14 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-09 07:27:37,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1338 transitions. [2024-11-09 07:27:37,006 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1338 transitions. Word has length 131 [2024-11-09 07:27:37,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:37,006 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1338 transitions. [2024-11-09 07:27:37,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 5.551724137931035) internal successors, (161), 30 states have internal predecessors, (161), 12 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2024-11-09 07:27:37,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1338 transitions. [2024-11-09 07:27:37,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 07:27:37,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:37,008 INFO L215 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 07:27:37,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-09 07:27:37,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-09 07:27:37,209 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:27:37,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1318807109, now seen corresponding path program 4 times [2024-11-09 07:27:37,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:37,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240682398] [2024-11-09 07:27:37,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:37,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:27:37,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367151807] [2024-11-09 07:27:37,249 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:27:37,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:37,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:27:37,251 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:27:37,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 07:27:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:37,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 07:27:37,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:27:38,068 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-09 07:27:38,068 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:27:38,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:38,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240682398] [2024-11-09 07:27:38,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:27:38,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367151807] [2024-11-09 07:27:38,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367151807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:27:38,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1484958698] [2024-11-09 07:27:38,470 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:27:38,470 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:27:38,471 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:27:38,471 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:27:38,471 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:27:39,689 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:27:39,764 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:27:40,528 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:27:40,531 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:27:49,562 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '62284#(and (<= ~counter~0 50) (exists ((|v_ULTIMATE.start_main_~q~0#1_139| Int) (|v_ULTIMATE.start_main_~B~0#1_55| Int) (v_~counter~0_254 Int)) (and (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_55| 4294967296) |v_ULTIMATE.start_main_~q~0#1_139|)) (<= 0 |ULTIMATE.start_main_~r~0#1|) (= ~counter~0 (+ v_~counter~0_254 1)) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~q~0#1_139| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))))' at error location [2024-11-09 07:27:49,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:27:49,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:27:49,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 07:27:49,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344555619] [2024-11-09 07:27:49,563 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:27:49,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:27:49,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:49,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:27:49,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1616, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 07:27:49,564 INFO L87 Difference]: Start difference. First operand 1044 states and 1338 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-09 07:27:50,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:50,040 INFO L93 Difference]: Finished difference Result 1117 states and 1427 transitions. [2024-11-09 07:27:50,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 07:27:50,040 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 135 [2024-11-09 07:27:50,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:50,044 INFO L225 Difference]: With dead ends: 1117 [2024-11-09 07:27:50,045 INFO L226 Difference]: Without dead ends: 1115 [2024-11-09 07:27:50,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 235 SyntacticMatches, 9 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=276, Invalid=1616, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 07:27:50,046 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 68 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:50,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 402 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:27:50,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2024-11-09 07:27:50,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1096. [2024-11-09 07:27:50,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 953 states have (on average 1.224554039874082) internal successors, (1167), 965 states have internal predecessors, (1167), 116 states have call successors, (116), 14 states have call predecessors, (116), 14 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-09 07:27:50,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1399 transitions. [2024-11-09 07:27:50,315 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1399 transitions. Word has length 135 [2024-11-09 07:27:50,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:50,316 INFO L471 AbstractCegarLoop]: Abstraction has 1096 states and 1399 transitions. [2024-11-09 07:27:50,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-09 07:27:50,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1399 transitions. [2024-11-09 07:27:50,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-09 07:27:50,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:50,318 INFO L215 NwaCegarLoop]: trace histogram [18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:50,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-09 07:27:50,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:50,518 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:27:50,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:50,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1573627744, now seen corresponding path program 2 times [2024-11-09 07:27:50,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:50,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749331375] [2024-11-09 07:27:50,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:50,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-09 07:27:51,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:51,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749331375] [2024-11-09 07:27:51,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749331375] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:27:51,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401826512] [2024-11-09 07:27:51,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:27:51,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:51,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:27:51,030 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:27:51,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-09 07:27:51,889 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-09 07:27:51,889 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:27:51,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 07:27:51,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:27:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 414 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 07:27:52,093 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:27:52,686 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-09 07:27:52,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401826512] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:27:52,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1880058706] [2024-11-09 07:27:52,687 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-09 07:27:52,687 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:27:52,687 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:27:52,687 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:27:52,687 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:27:54,758 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:27:54,762 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:28:04,698 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '65882#(exists ((|v_ULTIMATE.start_main_~d~0#1_300| Int) (v_~counter~0_273 Int) (|v_ULTIMATE.start_main_~q~0#1_146| Int)) (and (<= 1 |#StackHeapBarrier|) (= ~counter~0 51) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_146| |v_ULTIMATE.start_main_~d~0#1_300|)) 0) (= v_~counter~0_273 50) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807)))' at error location [2024-11-09 07:28:04,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:28:04,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:28:04,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 18] total 37 [2024-11-09 07:28:04,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104535479] [2024-11-09 07:28:04,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:28:04,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-09 07:28:04,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:28:04,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-09 07:28:04,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=501, Invalid=4328, Unknown=1, NotChecked=0, Total=4830 [2024-11-09 07:28:04,701 INFO L87 Difference]: Start difference. First operand 1096 states and 1399 transitions. Second operand has 37 states, 37 states have (on average 5.621621621621622) internal successors, (208), 37 states have internal predecessors, (208), 14 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 14 states have call predecessors, (54), 14 states have call successors, (54) [2024-11-09 07:28:06,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:28:06,289 INFO L93 Difference]: Finished difference Result 2227 states and 2830 transitions. [2024-11-09 07:28:06,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-09 07:28:06,290 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 5.621621621621622) internal successors, (208), 37 states have internal predecessors, (208), 14 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 14 states have call predecessors, (54), 14 states have call successors, (54) Word has length 152 [2024-11-09 07:28:06,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:28:06,304 INFO L225 Difference]: With dead ends: 2227 [2024-11-09 07:28:06,305 INFO L226 Difference]: Without dead ends: 1940 [2024-11-09 07:28:06,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 394 SyntacticMatches, 11 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4730 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=1286, Invalid=9425, Unknown=1, NotChecked=0, Total=10712 [2024-11-09 07:28:06,306 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 256 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:28:06,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 876 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:28:06,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2024-11-09 07:28:06,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1918. [2024-11-09 07:28:06,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1918 states, 1694 states have (on average 1.1829988193624557) internal successors, (2004), 1706 states have internal predecessors, (2004), 188 states have call successors, (188), 23 states have call predecessors, (188), 23 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-09 07:28:06,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 2380 transitions. [2024-11-09 07:28:06,619 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 2380 transitions. Word has length 152 [2024-11-09 07:28:06,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:28:06,619 INFO L471 AbstractCegarLoop]: Abstraction has 1918 states and 2380 transitions. [2024-11-09 07:28:06,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.621621621621622) internal successors, (208), 37 states have internal predecessors, (208), 14 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 14 states have call predecessors, (54), 14 states have call successors, (54) [2024-11-09 07:28:06,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 2380 transitions. [2024-11-09 07:28:06,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-09 07:28:06,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:28:06,621 INFO L215 NwaCegarLoop]: trace histogram [21, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2024-11-09 07:28:06,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-09 07:28:06,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-09 07:28:06,822 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:28:06,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:28:06,823 INFO L85 PathProgramCache]: Analyzing trace with hash 2078533323, now seen corresponding path program 2 times [2024-11-09 07:28:06,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:28:06,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798931692] [2024-11-09 07:28:06,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:06,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:28:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:28:06,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457567342] [2024-11-09 07:28:06,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:28:06,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:06,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:28:06,860 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:28:06,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-09 07:28:06,923 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 07:28:06,924 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:28:06,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:28:06,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:28:07,734 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-11-09 07:28:07,734 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:28:08,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:28:08,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798931692] [2024-11-09 07:28:08,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 07:28:08,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457567342] [2024-11-09 07:28:08,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457567342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:28:08,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1907178339] [2024-11-09 07:28:08,444 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-09 07:28:08,444 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:28:08,444 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:28:08,444 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:28:08,444 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:28:09,562 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:28:09,636 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-09 07:28:10,404 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-09 07:28:10,408 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:28:20,925 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '71413#(and (exists ((|v_ULTIMATE.start_main_~p~0#1_308| Int) (|v_ULTIMATE.start_main_~B~0#1_58| Int)) (and (= (+ (* |ULTIMATE.start_main_~q~0#1| (mod |v_ULTIMATE.start_main_~B~0#1_58| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_58| 4294967296) |v_ULTIMATE.start_main_~p~0#1_308|)))) (<= 1 |#StackHeapBarrier|) (<= ~counter~0 50) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))' at error location [2024-11-09 07:28:20,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:28:20,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:28:20,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-09 07:28:20,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787950661] [2024-11-09 07:28:20,926 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 07:28:20,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:28:20,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:28:20,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:28:20,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=1703, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 07:28:20,927 INFO L87 Difference]: Start difference. First operand 1918 states and 2380 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:28:22,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:28:22,296 INFO L93 Difference]: Finished difference Result 1975 states and 2451 transitions. [2024-11-09 07:28:22,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:28:22,296 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 156 [2024-11-09 07:28:22,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:28:22,306 INFO L225 Difference]: With dead ends: 1975 [2024-11-09 07:28:22,306 INFO L226 Difference]: Without dead ends: 1973 [2024-11-09 07:28:22,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 283 SyntacticMatches, 9 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 973 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=313, Invalid=2039, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 07:28:22,307 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 119 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:28:22,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 200 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 07:28:22,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2024-11-09 07:28:22,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1531. [2024-11-09 07:28:22,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1342 states have (on average 1.1520119225037257) internal successors, (1546), 1353 states have internal predecessors, (1546), 154 states have call successors, (154), 23 states have call predecessors, (154), 23 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-09 07:28:22,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 1854 transitions. [2024-11-09 07:28:22,672 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 1854 transitions. Word has length 156 [2024-11-09 07:28:22,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:28:22,673 INFO L471 AbstractCegarLoop]: Abstraction has 1531 states and 1854 transitions. [2024-11-09 07:28:22,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:28:22,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 1854 transitions. [2024-11-09 07:28:22,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-09 07:28:22,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:28:22,675 INFO L215 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 07:28:22,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-09 07:28:22,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-09 07:28:22,879 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-09 07:28:22,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:28:22,879 INFO L85 PathProgramCache]: Analyzing trace with hash -533251676, now seen corresponding path program 5 times [2024-11-09 07:28:22,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:28:22,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356674264] [2024-11-09 07:28:22,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:22,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:28:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:28:22,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [424635177] [2024-11-09 07:28:22,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:28:22,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:22,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:28:22,920 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:28:22,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a9acc4d-e0ce-4428-a267-bbd50b0ef086/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 07:28:23,075 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 07:28:23,076 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:28:23,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 07:28:23,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:29:07,823 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 130 proven. 34 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-09 07:29:07,823 INFO L311 TraceCheckSpWp]: Computing backward predicates...